I love spinning and you can do it on your own with a good playlist. I say go for it, if you can afford it.
155 by July 4th: Achieved 6/29
148 ("normal" bmi) by Labor Day: Achieved 7/15
140 by my birthday, November 26: Achieved 9/03
New goal: 135 by Halloween--Achieved 10/31!
Find grace in your strength, and strength in your grace.