I've been a member of this studio 'on and off' for a couple of years now. I am a yoga & qi-gong teacher and actively search for studios in the downtown area to practice as a student and gain inspiration from other teachers to bring to my own practice as a teacher.
I've stayed consistent with Sutra (even when I disengage for a minute to try another studio) because of their teachers, because of the wonderful vibe of the studio and because of the friendliness of the owner who ALWAYS remembers my name.
All teachers there are lovely but notably, ones I seek out their classes (and miss if I don't attend for awhile) are Brad and Chelsa. The barre classes I haven't attempted yet, but will be this week as I recently enrolled in the unlimited monthly membership. If you are in the central phoenix area I highly recommend this studio or the new location recently opened on Roosevelt and 1st St.