I can't speak highly enough about the quality of the rollers. The Jr would be a better size for myself due to a hand injury but it's so addictive and relieving to use and the owner/customer service experience is truly superb. Buy one. You won't regret it.
I love having the ONO with me during the day. I find that I constantly reach for it. This prevents me from biting my nails or picking at my fingers.