if you're heading to Moksha Markham on the weekend, i'd definitely say go earlier in the morning, or go on Sundays instead, when it's a teensy bit less packed & parking is easier to find. but my fav remains weeknights when the dim lights let you really relax after a day of work -- though be warned: you may end up falling asleep after the last shavasana!
it's nice when the instructors respect the meditative aspect of yoga throughout the *entire* class, in the pace, music, and verbal instructions (i.e. no cracking jokes, please). & also much appreciated when they offer little tidbits to help you better reach each posture.
while I understand in the winter that snow will trail its way into the landing area, walking through puddles after taking off your shoes and seeing salt stains on the hardwood infront of reception is quite gross...but I do see them mopping up after each class so at least sweat puddles are taken care of :)