Same here, basic 11", downloaded and installed Lion yesterday, took a long time with my ISP, and it is working fine, the same or even more responsive than before.
Also installed the trial version of Parallels and that has been the biggest breakthrough for me. This is my first Mac, but Quicken on my PC is my main and most used application for all my home accounts. I am using Quicken 2004 which was the last produced for the UK, but have been running it on a second PC netbook. Tried versions for the Mac, but they are either USA ones or corrupt QIF files that are imported.
However 2004 is now running in Virtual Windows on my MBA which has made my day.
tut