I got turned onto Airflo Ridge Lines last year and have been extremely happy with them. I too have lines from Rio and SA and found the Airflo lines to be on par with them. I don't find them to float quite as good as SA Textured line (nothing I have tried does) but they do just fine. The key with any line is getting a taper that is suitable for your rod and the flies you're going to throw with it.
Couple of questions: What model line did you get? There are several Ridge Line offerings. What rod(s) are you intending on matching them up with?
As for when/how often to clean them, it's pretty simple really. When the line doesn't shoot out the way I know it's supposed to, I wipe them down.
siski, this is pretty much the process I follow with good results.
Cleaning Fly Lines - Fishing Tips | RIO