I reserved mine in early February and got the email to order in early September. So I then received it almost 7 months after reserving. So far I'm loving it. I've mostly been adding emulators, roms, etc. There are so many emulators it's hard to stop adding and experimenting.
Some games I didn't know even ran and ran well (after tweaking):
Splinter Cell: Chaos Theory
Just Cause 2
I tried the Switch emulator also and even though it works it can drain the steamdeck battery VERY fast on graphically intensive games running at the highest resolution needed to have parity with the Switch. I mostly tried Diablo 3 and it runs and looks great at 60fps but it's not very portable when it has less than half the battery life of my OLED switch.