The Garden Villa is honestly not that bad. If you've never had an OWV experience, ok, you need to get that checked off your list. But having stayed in the OWVs, they're (comparatively) more inconvenient, and especially if you're with kids or something, the OWVs are just pure novelty. The Garden Villas, at least at the StR (note, that IC Thalasso / Bora Bora is different: the garden villas there are so bad that they couldn't justify handing them out anymore), are actually rather nice, so I would not hesitate to book them.