Terence,
Once you do a liveaboard you will probably not want to do land based diving again!
You set up your equipment once, you rarely have to lift your gear, no transit times, no theft, etc. It is very comfortable.
The food on that boat was great. Also, because of the hull shape, you don't have to use a dive tender. You literally jump off the back of the boat and start your dive. When you are tired or cold, you swim back up, hop out, take a warm shower on the dive deck, and they wrap you in a heated towel! At night when you finish the night dives they have hot chocolate with rum waiting for you. It is great for couples since you don't have to do every dive, and you can leave a dive early if you are tired.
For a location like Belize, I can't recommend it enough.
-Josh