Foremost - do NOT let the fact that the surface comes in two pieces deter you from purchasing this. This desk is extremely stable and study. The desk surface is completely scratch resistant, don't worry about writing too hard on it and leaving indentions. Yes, the reason they can make this desk so cheap is because they can ship it in a much smaller box by splitting the surface in two. However, the seam is far back enough so that you'd never even remember that it's there. From front to seam, it is 18.75 In. Unless perhaps you're using it for large paper-based art. If so, then yes, the seam would be susceptible to leaving holes in paper were a pencil to forcefully run across it. I've never once had that problem, but there is indeed an indention.
If you plan to use a computer on this desk as I do for work, then the value and quality of this product is unlike anything else on this website. Competitors of lesser quality are often nearly twice the price.
The stability is honestly hard to believe. Better and much cheaper than IKEA for sure (I love IKEA, hard for me to say that), and I believe the standing desk at my company's office is name-brand veridesk - it's as stable as that if not moreso, even on carpet, at the highest level of elevation. I am 5'10" and the highest it can go is still too high for me.
I have had it for a year, and have raised&lowered it automatically 5-6 days a week with no issues since I first bought it. I do cardio in the mornings before work, and usually stand until lunch and sit from 1pm-5pm. No problems whatsoever.
Assembly was easy, though be careful about over-tightening some of the screws before the others. I feel like doing so improperly would make the entire thin desktop bow inwards. Loosely place all the screws, them carefully tighten afterwards proportionally.
Great sized workspace, the cherry red is very stylish, great value even when I bought it for 30% more than it is now. Whoever engineered this deserves a raise, and whoever is selling it needs a high five.