We did a private barre class as part of my sister's bachelorette and Tasha (Harvard Square) was our instructor. She was so sweet, motivational, and absolutely kicked our butts. Although we're all still sore days later, we would totally do it again!
I actually recommended y'all to someone yesterday - she's never tried barre and I said if she was going to, Barre and Soul was the most welcoming place to start (inclusive, body positive, and kind - esp compared to many fitness studios, sadly)