We dove with living the dream in Dec. '15 as new divers (around 12 total dives) and would definitely recommend them. They cater to all skill levels and we never felt overwhelmed despite being very fresh, in fact those were our first boat dives.
What my wife really liked the about living the dream is how easy they made diving... they pick you up at your condo, handle all the gear and you literally take a boat ride, suit up on a bench at the back of the boat and take one step in with all the gear on. She's 115 lbs so having another 40 lbs of dive gear on is considerable and so spending as little time as possible standing around suited up was great.
As far as morning and afternoon dives, there are a couple things to consider. The personal preference of being a morning person and ready to get going or preferring to have leisurely mornings. The typical weather patterns, does it get windier throughout the day, what is the weather forecast? For the west side of GC, just check the seasonal averages, but it shouldn't matter quite as much morning to afternoon. And then visibility. The higher the sun in the sky the better the vis. So, the second morning dive and first afternoon dive will be the best visibility, typically.
We also used their gear, as new divers we hadn't bought anything beyond fins and masks at that point. There gear was good, it wasn't cheap or old stuff in need of replacing.