Contrary to the previous review we stayed very comfortably with three Adults in Toad Hall. The mezzanine floor does have very low ceilings and doesn't really have much space to do anything other than sleep, but this was fine for our needs and the rest of the living space is more than enough to compensate (though if you are a large Dutchman in need of personal space an upgrade to the larger Toad Heights may be advisable). This was all made clear to us at time of booking.
It's clear that a great deal of thought and effort has gone into making the space inviting and accessible. The decorations are charming and make the place feel very special (in a good way) and handy instructions are never far away if you're unsure of how things work. Steve was very responsive and helpful with the booking and put us in touch with Bruce Taylor, who arranged our airport transfers, took us to a supermarket en route, and sorted us with a hire car. Definitely the person to go to for sorting travel logistics from Castara! We found the place clean and tidy and were met by Petra on arrival who showed us around.
Castara itself is a very nice little town with a lovely beach, a few nice bars, and a good group of helpful locals. The town is tourist friendly, but also feels much more 'real' than staying in Crown Point. Fresh fish from the bay is a great highlight- we cooked ours on the outdoor barbecue which worked well once we'd gathered up some wood from the beach (though in hindsight we should have bought charcoal from the supermarket on the first day- there was none provided). Castara is also pretty central on the island, making it a good base to venture to any of the various other beaches, towns, or the forest reserve.
A few niggles prevent this being a fully positive review: the internet was lousy- we couldn't count on it for anything other than perhaps sending the odd message (not too much of a big deal- but good to know), the mosquito nets were well intentioned but not hugely effective (there are various gaps which some mozzies unfortunately seemed able to navigate), and the neighbours had a tendency to disrupt the peace by playing music very loudly at antisocial times of day (we were woken up at 7am by thumping bass one day out of three, and loud music was a recurring feature on all days). Not sure the property can do much about the last point, but it's something the Castara community needs to address if it's serious about attracting tourists in search of a quiet retreat.
For us the charm outweighed the challenges and we'd happily recommend Toad Hall as a great, and very reasonably priced, Tobago base; though if you are particularly sensitive to any of the issues mentioned above you may wish to consider other options.