We had a good time this week in Mazatlan. The hotel picked us up from the airport, which was great. The check-in process took over an hour, however. This is the risk you run when staying at a hotel which services multiple timeshares, inclusive deals, etc. The checkin process is frustrating, so be prepared. The food is what you'd expect from a resort offering inclusive packages, so try to eat in town when you can. The service is fantastic overall. Our bellman, Ramon remembered us and offered additional help to secure a van back to the airport after the front desk told us they only assist with vans (there were 6 of us) TO the hotel. Ramon rocks. The poolside waiters are fantastic--especially Francisco, who went out of his way to accommodate us, providing us with anything we wanted. Multiple pools, a great beach area, and rooms which, while dated, are always clean.
The worst part of the experience was the timeshare up sell. Be warned that if you go to a presentation, which is presented as part of the deal when you stay here as part of an existing timeshare visit, there are multiple confusing layers, interviews and incentives. We joked that it was Like Hotel California, and feels like you can check in but you can never leave. This aside, the hotel staff is great overall and we enjoyed our week here.