From a yoga teacher, this is the best ashram is Rishikesh!! The ashram is beautiful & clean, classes are strong yet spiritual & staff are lovely. I just stayed for a few days, however I would definitely come back in Winter to do more yoga training.
Although Rishikesh is quieter in monsoon season, which was nice, it was a bit dirty & humid, there was construction everywhere and a lot of facilities/ activities are unavailable.