Stayed here for an extended weekend to do a dive course at nearby Aqua Vision (which I highly recommend), this guesthouse is in the middle of a building that compromises three different but pretty much the same hotels - Pranang Flora House, Harvest House, and Aonang Goodwill. I have now stayed at all three and whichever one you choose, you will not be let down as I believe they are all owned by the same owners because there isn't much difference between any of them.
Located about a 10-15 minute walk from the beach depending on age, it's a bit far but not necessarily a bad thing since the closer you get to the main street the brighter and noisier it gets. There is a mosque nearby but it never woke me. There is a KTB bank onsite which is very handy if you need an ATM.
The rooms are generously sized, free and fast wifi, air con worked well, TV had a good selection of English and other falang language stations, bathroom was clean and adequate, balcony was narrow but would be useful for smokers or a place to dry your clothes. The rooms at the back are quieter but have no view of anything but trees and leaves, the rooms at the front have a view of the street but you gain a small amount of traffic noise. The only letdown of the place, and only reason I gave it 4 dots instead of 5 was my queen/king sized bed was two single beds pushed together. Not a big deal, but if you want to lay in the middle of the bed it is quite uncomfortable. If you are asleep and roll over onto the middle, it's annoying. I assume every room is like this so they can be converted to one bed or two. This wasn't an issue at the other two aforementioned guesthouses.
They offer breakfast for an extra 210 baht which I didn't partake, but since there is a huge variety of places to eat nearby and further down the street, you might as well use that large sum of money to get exactly what you want. There's no pool or gym, if you want to swim head to the beach, and if you want a workout go for a jog, you won't be the only one out running at any given time. They can do your laundry for 40 baht a kilogram, delivered to your room the next day. The staff were very helpful and friendly, they can also assist you in booking activities, local transportation and onward transportation and accommodation.
In my personal experiences, I had 5 star stays at the Pranang Flora House and Aonang Goodwill (read my reviews if you'd like) so I'd recommend them over the Harvest House, but you can't go wrong with any of 'em. Recommended for all ages and budgets.