White Manta is, by far, my favorite liveaboard in Thailand. I've been on many, starting with the old Short Cut back in the mid 90s. I've done at least one trip per year on the White Manta since she first sailed. The management is excellent, the boat crew experienced and well trained and they always provide superb dive guides. The food and accommodation are first class.
That said, the White Manta is now priced out of my range, even with a returning diver discount. For example, the Tapana Catamaran offers four day, 14 dive trips at 30K baht for a big cabin with an en suite toilet. White Manta charges 45K for a similar trip with similar accommodations. In addition, the Tapana allows you to sleep on the boat the last night and transports you to the airport the next day after you've waited out your no-fly time. This saves a couple thousand baht in hotel and taxi expense.
Of course, the rub is that the Tapana is a Thai owned and operated boat and probably not suitable for Westerners who have no patience for the Thai way of doing business. On a scale of punctuality and precision, White Manta is near or at the top. Tapana Catamaran is not.
Booking is another issue. With White Manta you can book far in advance either online or through an Agent. Booking the Tapana is an ever-evolving mystery involving multiple visits to Facebook and dive agent web sites and Line chats that only my wife can fathom.
Another consideration is that Tapana Catamaran and her sister craft, MV Tapana, are both offering South Andaman trips this year. AFAIK, White Manta is not.
- Do I prefer White Manta? Yes
- Can I afford White Manta? Maybe
- Can I persuade my wife (also a diver) that the difference in cost is worth it? Probably not.
YMMV