I love doing yoga ! I've done Hatha, Iyengar, Vinyasa, Power yoga, etc...I even do pilates.
I don't like Bikram. That's just a personal preference. I don't like being in the ultra hot room doing poses. I find that when I sweat too much, I can't concentrate on the pose. However, I do know people who love doing Bikram. They love being in that 98 degree room. It just doesn't work for me.
I would say go in with an open mind. If you like it, awesome. If you don't, that's okay too. Do they give refunds or does this studio offer other types of yoga just in case you don't like it ?