It is, but the app is frustrating. It has a mind of its own sometimes and, subjectively, basic UI functionality was an afterthought. Also no support on a galaxy watch.

That said, it sounds great and has a solid catalog (except the DJ Krush/Toshinori Kondo collab, Ki-Oku. Grrrr)

I quit well over 15 years ago (after 10 years or so) and I only had cravings for maybe a year or two. After that, smelling smoke just grossed me out. The worst is that I frequently have dreams where I start smoking again and it feels/smells/tastes absolutely horrible and I have to explain to people why I decided to start again. Still a monkey on my back for sure, but at least when I am awake it is the furthest thing from my mind.