I'm on the fence about lulu because of the controversy surrounding the brand, the prices that just seem ridiculous for clothes to sweat in and the fact that the expense makes them hip (particularly in North Scottsdale), but people are not even sweating in them! That being said, I do practice yoga and I can't deny that the clothes are cute, comfy and functional in classes. I love everything I've bought here...a few tops with built-in bras, speed shorts that are great for running and wunder under crops.
Although the place is crawling with too many spirited workers for the small space, they are all helpful and friendly - they've always had something to say to me about local events. I also love the community yoga they offer as a partner with local studios - the practices I've been to have been great.