Don't know Sunshine Vacation Club but do know Trianda pretty well.

Yes There are plenty of bars and restaurants in Trianda. Not wild party bars, more low key but i guess if it's a honeymoon and you're taking your son you won't be looking for Faliraki!

It's worth visiting Filerimos which is a short UPHILL taxi ride/drive away. Lots to see in Rhodes Town, it's fairly close to Trianda and there's a regular bus service. If you decide on any boat trips from town then book these in the harbour yourself as it's much cheaper than through a Rep or travel office.

*** Just noticed there's a post about this place on http://www.tripadvisor.com in the Rhodes Forum, those who've been recently seem quite happy.