It has been a very good experience, so far.
In fact, I've also been leveraging Thunderbird...this is a first time for me (since Netscape Mail back in the 90s). It is very robust!
I've also aliased a few commands that I tend to use alot, mainly ssh commands that I use on remote hosts.
I've also found some decent background images that I've scaled (using Gimp) to 1024x600.
I've also been conducting my typical security audits (BASE and iptables and web server log perusing).
I've not used my Mac in like 3 weeks! I don't know if that's a good or bad thing (probably bad for the battery).