Jennifer Aniston’s workout secrets

Jennifer Aniston was featured in the September issue of Shape magazine. She looks insanely good. At 40 - heck, at any age - she looks insanely good.

She has a spinning bike, does yoga and eats incredibly clean. She swears by Smart Water (of course, she’s the spokesperson after all) and loves a recipe for a celery, zucchini and basil salad (or something) in The Family Chef cookbook.
Looks like there are plenty of healthy, yummy recipes in this cookbook; may add it to my library.

But about that bike Jennifer has at home...
I love Spinning. Was one of the first certified teachers in 1996. But I can't decide if I would actually ride one by myself. The group class is a killer-good workout, with the music and all, but there's something to be said for that peer-pressure.
What do you think? Would you ride a spinning bike if you had one at home?