I really do love the strains at Altitude. I have never been disappointed, and then you see their prices :) I keep coming back, to either one, East or west are both excellent
The best strains I've seen anywhere in Denver. All the popular ones you'd be looking for, like Skywalker OG, Green Crack, and Durban Poison to name literally just a few. $50 1/4s on all those too is amazing.