I wanted a Generator that has a dependable 50 amp output, so I shopped and shopped...I wanted a Gen that's NOT made in China and preferably made in the U.S.A. All I could find was Generac. They are two or three times the cost...I wanted the Gen for emergency power conditions... I already have two other older 30 amp capable Gens and they _can_ run the emergency stuff. But I wanted growing room.I almost sprang for the 13k HXT. There's one local still new in the box for 1250.00...So instead I dropped the additional $$ for the 15k EH, not sure that was/is wise especially since finding the Westinghouse 13k tri fuel which has more features and accessories than the Duromax 13k tri fuel... and costs less (It's made in Vietnam... I'm ok with that.)Anyhoo...--This thing is HEAVY! and it's tall, it won't fit under my 36" high garage bench without modification of the 2x4 support rails under the bench.--Surprisingly, the wheels are PLASTIC. Both the rims and the tires. But since it's NOT a jobsite Gen, it's probably a non issue. Tubed rubber tires on metal rims would be better IMO.--I wished the handles were joined in a u shape like other Gen models, but again, this ain't gonna be a tote around Gen...--I've read complaints about the battery configuration. The battery is shipped backwards, the terminals on the interior side of the Gen. Just flip it around so the terminals face out! The terminal wires are long enough on purpose to reach the appropriate terminal lugs when the battery is spun around with lugs facing out. The battery retainer bar is notched on one end so it slides under a screw head, the other is just a hole. I heard people complain about this also... so just flip the thing around so the notched end is on the side behind the wheel...--I heard complaints about the 50 amp port being above the wheel and people having problems connecting 50 amp cables. I guess this could be an issue if you have particular cables... I dunno. I have one that is a right angle with finger holds and it connects without a problem and the cable hangs down between the tire and frame fine (see pic).--There's no idle control and at first this bugged me. But I realized this isn't a jobsite Gen where power usage is not constant. Using this to run a house back-up setup means idle control would be meaningless anyways (I have a 6000 and an 8000 watt generator(s) for jobsite usage and they have idle control).-- Being a big v-twin engine, it's gonna burn more fuel than the single piston models. I would have preferred a longer run time, but that would mean a larger gasoline tank... for an already heavy TANK!. Propane bottles are ubiquitous. Having several is just a smart thing to do. Buy a used one for $10 (or get it for free), take it to Wally world or Lowe's or TSC etc and use it for the trade in priced filled bottles. (Be sure to check the stamped dates on the bottles you get and get newer ones from the lot incase you need get them refilled elsewhere... there's a 10-12 year refill limit on bottles).-- There's no assembly instructions AT ALL, so if you're not mechanically inclined, you're gonna be a lil frustrated. But it's only the wheels and lift bar at the top that needs to be installed. The battery needs connecting as well, and this is where you need to take advice from others and flip it around so you can connect a maintainer/charger. Which is another issue... this thing should have come with a battery charger and charging while running feature like other models have. But again, for me it's an emergency use Gen. I might not run it for months. So having a battery maintainer is just gonna have to happen. (The Westinghouse 13k dual and Tri fuel come with battery chargers as well as battery charging while running).This thing started right up on propane after assembly. I only ran it for 10 minutes, and it ran nice.I did take the advice of others here and installed an oil drain valve with the drain hose adapter. It's just smart to do.Edit 9/15/23I wanted to set up this generator for a house backup. I also wanted to run it from my detached garage. I set up a 50amp connection to my garage sub panel and set up a disconnect in the house to another sub panel that my garage and emergency circuits are in. I can disconnect the main panel from the sub panel when the power goes out and back feed the sub panel with the Generator.But I wanted to exhaust the Gen to the outside so I shopped Amazon for products I could employ for this purpose. All the things you see in the pictures are purchased from Amazon. I used an 1 1/4 ID flex exhaust and a 1 3/4 flex exhaust section, putting the smaller in to the larger for a double walled exhaust. I used exhaust fittings and clamps to connect them. I also purchased a 3" stainless wall cap with louvers and a screen for the outside of the garage.The 1 1/4 fits VERY snugly over the exhaust port on the Generator and needs no clamping or screws to retain it. Using red high temp silicone, I sealed the connections all together, inside and out.It all works very well and all the exhaust is ported outside the garage.