I've been to both branches of Gusto several times now. Each visit I've left feeling amazed by the talent and good nature of the staff, and as if I'd been on some rejuvenating holiday. They are geniuses when it comes to hair colouring.
I had a tint and blow-dry and the colour turned out to be way darker than what I wanted. The hairstylist was inexperienced and couldn't provide much advice when I was trying to choose my tint. Also, after more than two weeks the colour keeps staining my towel every time I wash my hair. Not sure what kind of tint they used but I wouldn't recommend doing your colour over there. The only good thing was the blow-dry which was nice and lasted a few days.
Haircut and blow dry was excellent, I'm marked them down as I wasn't keen on the music - purely a personal choice as I like to catch up on my reading at the hairdressers.