Firmware Preference Poll: 157 vs. 158 vs. 1.0.99

1.Which firmware version are you currently running?
2.Are you RBE (rainbow effect) sensitive?
3.Which firmware version do you prefer?
4.What is the main reason for your choice? (stability, features, bugs, compatibility, etc.)
5.How long have you been using your current firmware?
6.Along with this firmware, have you noticed any other concurrent issues happening at the same time (e.g., problems with your source device, AVR, HDMI cables, network, or anything else in your setup)? Please describe what you've seen.