I would agree whole-heartedly with Bug...We've been up and down the Riviera Maya in Mexico over the last six years and have settled on Playa Sonrisa as our "go to" destination. We had the chance to preview Mak Nuk last March and will be including it as a viable alternate when we want a change of pace...they are very different, but we love them both. Here's a link to a trip report that covered both Mak Nuk & Playa Sonrisa.