This is pretty strong endorsement. I was watching the CM7.1 thread on the fence. I will jump in then. Thanks.
Well I'm a bit biased because I'm the one doing the coding, but yeah I don't have most of the really annoying problems. My stance is that if you use CWM recovery, do a full 'factory wipe' from CWM, and then install one of Jerry's builds you should be fine.
There are likely some games that are going to perform better with Drew's XioniaRedux kernel and that's something I'll look into (as LG switched to a different driver for some of the Sprint kernels). Likewise there are a number of known problems (GPS, accelerometer) some of which you'll see with all CM7 ROMs for these phones (like the accelerometer getting sluggish after a day or so) and some of which are specific to IHO and IHO based builds (like the hoops you get to jump through to get data2ext working). IHO /is/ based off of the unstable CM source, but as CM gets closer to final 7.1 release, things will definitely get ironed out.
I'll put it this way: Facebook works as well as it ever would (which is to say it's a **** app in the first place), Angry Birds works as well on my IHO build as it did on aospCMod for me, Zenonia 3 works for me without crashing, USB tethering works, my WiFi stays connected, I can send/recv MMS just fine.
That said, I use this daily. It works well for me, but I'm definitely trying to nail down some of the little things many of which I can only seemingly attribute to partial wipes ? some versions of Xionia recovery definitely have issues with incomplete wipes... but I'm also seeing people who switch back and forth between all sorts of ROMs on a regular basis and trying to restore vs reinstall coming up with most of the weird problems. Starting from a clean slate is definitely the way to go.