Out of all the centers in the Springs, there are two worth visiting, both of which have already been mentioned in this thread.
Strawberry Fields and Green Earth, in that order are hands down the winners in the Springs.
However, I will say that both quality and service are on the decline at Strawberry Fields. They built a well deserved reputation for quality, and are now having difficulty keeping up. You may take an hour selecting from 31 great looking strains one visit, and walk out with a pre-roll of shake on your next because the shelves are empty. House strains rarely last more than a couple of days. Several staff members lack the professionalism they once had, and even the proprietors are getting "too busy" to address any concerns of the individual, or even attempt to meet any medical needs or requirements unless you're in a wheelchair, and then its' just guilt driven. Now, like every other center, it's all about slingin' weed to trendy hipsters. Bubble hash is "obsolete" according to SF now, but they'll jump at the opportunity to sell you a $500 bubbler to "get a hundred uses" out of a half gram of wax...