We spent 12 days at Poya Lisa, and it was difficult to leave.... partly because of the boat schedules.
By the way, there IS a way to get to Bomba every day, the people in one hotel in Ampana will lie to you and try to push you into chartering a boat. Find Edy at Marina in Ampana and he will get you on a boat plus 20 mins motorcycle ride if there is no direct boat to Bomba on the given day - 21k + 30k for the motor.
At Poya Lisa, nobody warned us about the rats in advance. DON'T LEAVE ANY FOOD in your room, not even in your bag, the damn things will chew through it. They are absolutely everywhere. You can only keep food on a string. Bring fruit from Ampana, as they don't serve any, and nothing but bananas is available in Bomba.
The house reef is a bit disappointing, but they are very good at organising snorkelling trips to other places. Don't miss the whole day trip to Taupan, it's the best reef. The beach where you have lunch also has mobile signal if you climb up a bit. Mobile signal is not available at Poya Lisa but you can take a moto taxi from Bomba to the top of a hill if you have important calls. But nobody will tell you if you don't really really ask. The snorkelling trips are good value if a couple of people share. The snorkelling gear available for rent is almost totally useless, leaking pipes, broken mismatched fins, better off bringing your own or you may miss out on the whole thing (it is free though). Snorkelling trips are also free if you stay more than 10 days - they get wiped out of your account.
Renting a boat on to Wakai was a bit of a nightmare, first we got told 300k , then it went up to 400k when it was time to go and we felt like we were being pushed into a corner. They do try to accommodate both charters and snorkelling trips on the same day if there are many people around so you don't lose days of snorkelling because the boat is always out somewhere taking people to other places.
The bungalows on the "hill" were boiling hot during the day, and rattling and shaking all night in the storms. Better go for one of the quieter bungalows on the beach side, they are more protected from the elements, even if the view is not quite the same.
We loved the food and the snacks, but this is definitely not your place if you hate fish. You'll end up with an omelette for every meal.
Recommended but be prepared!