I went to Moom Aroi during dinner service and the place was almost packed with reservations, if you're coming in a big group, please make a reservation beforehand if not you'll need to wait for a table to be available. Service wise, it was prompt, only if you can get the attention of their wait staff. I don't blame them as the dining area was huge and they were all busy running around taking orders and serving tables. There was a live band entertaining the restaurant goers.
Food wise, the menu was in both English and Thai, and it was extensive. Ranging from western cuisine to thai staples, and of course, seafood. I ordered a variety of dishes, such as, Goong Pao (bbq river shrimp), Orh Suan (oyster egg omelette), Hae Jaw (deep fried dollops of crab dumplings), and Pla Muk Neung Manao (steam squid in lime sauce). The order took awhile to come due to busy dinner service but once served, it was served all at once. The seafood were very fresh, especially the river shrimp which was full of shrimp head butter goodness.
If you're looking for good dinner place, especially with a group of friends, I would recommend Moom Aroi for their fresh and inexpensive seafood.