Pros: The Layana is a stunning resort set within paradise. The staff are fantastic and cannot do enough for you, even down to laying the towels on the sunbeds for you. The rooms are comfortable and good sized. The grounds are beautiful, both pools are fantastic and the breakfast is ample and tasty. Everything you would expect from a 5-star resort. The free transfer to/from Krabi airport also an added bonus.
Cons: When planning flights note the free transfer only runs at certain times. Our inbound flight landed after the free transfer so we had to pay roughly £40 per person. Our outbound flight meant that to get there in time we had to go much earlier and spent 3 hours waiting in the airport before we could even check in. It's not a huge problem but worth taking this into account when planning.
As with any 5-star resort you expect paid services to be more expensive however we found at Layana they were on the much higher end of this. e.g. the cheapest excursion was roughly £50 per person through the layana, the same excursion from a tour operator just outside the resort was £20. On friday they offered 40% discount on the spa treatments, but even after this they were still 200% more expensive then outside of the resort. Food was also incredibly expensive compared to local restaurants just outside. I would def stay there again, but not eat/drink there opting for the variety of cheaper and tasty local restaurants just a short walk away.