Loved the Nekton boats, been on both - Pilot in Belize twice and Rorqual in Cayman.
Have been a fan of the design of the boat, the dive platform and the room on board to spread out on the upper deck. Never had a crowded dive other than day 1 of the first trip. I learned to wait 15 minutes and you could gear up and dive on your own.
However I am not sure if I would go back either.
Belize was an easy trip to make from the west coast, now it requires an overnight stop somewhere. Cayman also requires an overnight stay somewhere but is at least somewhat direct, any other destination in the Caribbean is just too difficult/expensive to get to from here, and the diving while nice just isn't as good as the South Pacific.
If I am going to overnight somewhere it may as well be Hong Kong or Singapore and I can get to some spectacular diving for about the same or a small amount more in overall cost in terms of time and money.
I am not sure you could compete with that, but then the Pacific West Coast is probably not your target market.
Outside of that the boat is a good dive platform and you may be able to make a go of it. In my view you don't need to attempt to attract divers with price and trying to do it was a significant mistake made by the previous owner. You need to attract them with value and something unique. I am already giving up a week's earnings, paying for a flight to get there, a hotel at each end (possibly) saving a few hundred dollars is not what I am focusing on - it is the quality of the diving and the overall experience that interests me. What can you offer that is unique or special that will make me choose this boat over all of the others out there. The fact that it doesn't get me seasick isn't going to be enough. You need something else, something that ignites my imagination - fullfills some fantasy - revisits my youth - whatever. Providing a bus to go diving isn't going to be a successful business model - look at Aggressor, they provide a "yacht" to go diving, Nekton was providing a bus.
For me to come back there would have to be something different that I can't get somewhere else. I am not sure exactly what that is but if you figure it out I would take another Nekton trip - or more than one. If you can't and you are offering just another Caribbean dive trip I probably won't be back. There are too many other places in the world to visit.
A bit disorganised, but my opinion.