I was disappointed with the screen personally, i hoped that the jaggies wouldn't be noticeable. But it was that bad that i just sold the handheld off pretty darn fast, the games just got ruined by it.
It also didn't help that demo's of games took ages to hit the shop and where incredible short to keep me interested in the handheld, there was pretty much no free content besides some terrible television shows that lasted for a few minutes each week.
I kept on changing in every game between 3D and 2D constantly, 2D looked boring and the screen looked smaller, 3D was a lot better but the jaggies just drove me nuts which result me to switch towards 2D again, etc etc.
I bought the zelda edition as i never finished zelda OOT on the original n64. Did finished it at some point. Never bothered with the master quest, felt like a drag to do everything once again.
Bought mario later on, but found out that it couldn't entertain me for long. It felt like a collection of mini game levels instead of a real polished game ( my last mario was the 3D mario on the n64, so it has been a while ). I rushed through the levels but found out that i had to collect all the "stars if i remember correct" in order to unlock further levels and then just bailed out on it, as i didn't wanted to do the same levels over again to find some hidden star somewhere. It basically started to feel like a grind.
Sold my 3DS and bought a 3DS XL but figured out after i used that for a while, that the games just felt really like half efforts in general. I bought resident evil because it would be a showcase piece on the visual solution. The jaggies really destroyed walls in 3D, the main char also featured 3D ghosting in dark places, which just became frustrating all around. 2D the game was solid visually, but frankly after having that extra dimension its hard to go back to 2D, so the switching started again.
Sold it after i hitted a few area's futher in resident evil, because i was more fighting the combat controls + screen, then that i paid any attention towards the game itself.
It didn't help that luigi mansion was delayed also, which resulted me in dropping the handheld pretty darn fast.
I will probably wait on there next generation handheld and see if they fixed the screen problems to give it another try.