I'm coming from the Vibrant and I have the best experience with this phone.
At least I don't have to worry about ODIN bricking my phone & it doesn't feel like a cheap piece of plastic.
But yeah, you just do factory wipe + cache + dalvik, then flash the ROM.
Thanks.. i guess everybody has different preferences i'm just having horrible horrible battery life problem and 4g connection problem (it switches from 4g to 2g back to 4g randomly) with my sensation (and random reboots...) maybe i just have bad luck with this sensation... but battery problem is well known for htc phones so... hopefully this rom will fix the battery life a bit but thank you for ur tip!!