I’m just back from snowboarding in Andorra. We stayed in La Massana – quiet town (during ski season anyway) but there is a big gondola lift straight up to the bike park, it goes up where route 66 is. Stayed in Hotel Magic Ski, the gondola station is attached to the hotel! We couldn’t hear it from our room, so it did not disturb us. Hotel was good, decent sized rooms, comfortable, has it’s own lounge and bar (€1.65/pint in happy hour :D). Had a 1/2 board deal, massive amounts of food and loads of variety. There was a good bar just on the end of the building too, right beneath where the gondola comes in, all the lift attendants went there after work
You might want to look for a summer package deal, we got flights transfers and the 1/2 board for £400 from Crystal Ski
Arinsal had much better apres ski, bars were more lively and there were more of them, but doesn’t look well placed for the uplifts
Flew via Toulouse, same as any other airport really – not quick, not slow. About 3.5hrs transfer time by coach
HTH, PM me if you want more info