I know its fast/cool and all of that... But its not very stable, as compared to CM which is unbelievably so!
I'm using CM 18.104.22.168. I currently have over 100 MB of free memory and am idling at around 20 Celsius. No force closes, reboots, or laggy homescreens (I use a themed version of LancherPro) to speak of. Many times, stability (or instability) is directly related to your kernel and the cpu speed. You just have to mix and match kernels and speeds until you find the best combination for your phone.
Rom: Codename Android 1.0.1
Kernel: Imo's Lean Minimalistic Experimental
Ive been using BBv1 ever since pete released it and havent really had any problems with it, and if I did it was usually my own fault. I'm running at 77F idle on a 1.2 GHz kernel (currently at 800 MHz).
I think I'm going to switch to CM 5.0.7 for the time being and check it out.
How To: Compiling a Custom Version of Clockwork Mod Recovery
ROM: Incredibly Re-Engineered v2.3
Well, I am one of many who change ROMs like they are going out of style... and we all know that BB and CM are among the most revered releases out. (Note I said most revered, not best... there are lost of great ROMs out there besides either of these)
Anyway, I decided this morning to try the latest BB V1.1, and I must say that so far it seems pretty solid. I am running the LV 600 MHz stock Bekit, and it still feels really smooth and snappy.
I have only been testing this for a day so it is hard to make a full judgment on stability, but so far I have also had only one FC issue, and it was also after I messed it up tweaking... (Lets just say I had a dumb moment, LOL). I put things back and have been running great since.
I have been using it for about 12 hours since charging (including about 2 hours of calls, some web browsing, twitter, e-mail, a 20 minute download to my laptop through tethering, and loads of texting) and my battery is still at 30%... Not bad considering what I put it through today. And for me it is running real cool too. Never abouve 104 F, even while tethering and DL a 80 MB file.
~CyanogenMod 6.0 - Nightly Build
BB is pretty stable, it's a relatively basic rom. Those problems that some of you are describing sound like you didn't wipe the phone first before installing it, you used an incompatible kernel, or you tried to restore settings using Titanium and it carried over data from another rom.
However I wouldn't recommend going with BB. It's getting pretty obsolete since Pete doesn't update nearly as much as he used to. Upgrade to the latest version of CM first before deciding on whether or not you still want to switch roms.