I had no single random reboot or crash with Finless 1.5a with 1080 kernel which base is the old 004 firmware.
The only problem now i guess is the video thing. But the system and UI running damn fast with 005!
I've had loads of problems with all X7 FW's although I haven't tried Strauzo. But Minix's 005 is the stabilist out of all of them. Video playback is still not the best but stability wise it's the only Stable Rom.