I love it, I don't do it enough though. I tried the DIY, but I have to say going to a great yoga instructor is priceless. I've found a very small, local donation based yoga studio ($3-$5 suggested donation and you can stay for another class). The instructor I like to go to is just amazing, very encouraging, doesn't want you to hurt yourself or push to hard just to get the pose. He's just awesome. I have to say the oujai pranayama (breathing style) is really helpful in being mindful of your breathing, helps control breathing (on the bike too) deepening your breath, etc.

I'd encourage anyone to try and find a yoga studio and not take a yoga class at a big gym. I'm sure there are decent yoga instructors in gyms, but my experience with the small yoga studio, I would never be able to attend a gym yoga class!

Do it!