Now that there has been significant upgrades, should I stay with my Z1 (upgrade to Z3) or buy F90bt...I like the IR remote feature and the 7 inch double din, but hate having to look for a long time for a song (scrolling interface is slow in Z3). What do you think?

delete

The f90 is perfect after the firmware upgrade

This is an opinion not a proven fact, there is no such thing as perfect, and even if it existed the f90 is nowhere near perfection.

i went with the f90 since it has extra features and cashback from ebay makes it a done deal

I have three Z2's running around in my family's cars. They are a very nice system, but have their bugs too. Bluetooth is a problem they've been fighting since day 1, but finally seem to be getting their arms around it. But the F series has some things I am very interested in and intend to try. The ability to go in and play around with the software is HUGE in my opinion to personalize the system to your needs. Most of the serious bugs have been addressed, but they need to continue working on a few. Not being able to head up in 2D is a major mistake in my opinion. I would much prefer XM NavTraffic, but that won't happen. A few other things that I can probably either live with or fix by hacking. Once they get the heading up in 2D fixed, I'll probably go with one.