Two suggestions -
1. If you're tall, go for row 1, as it has a larger footwell than the other rows, and it's easier to lay on your side. I don't find the galley noise a problem either, particuarly after the food service is complete.
2. There is a slight gap between the seat and the casing. Be very careful with coins, pens, keys, and especially electronics, because if you drop something down there, it will typically take a mechanic to get it back (really). Easiest way to deal with that is to take a gallon sized sealable plastic bag with you. Put your phone and all the contents of your pockets in that bag and put it away for the flight. It's a good idea to write your passport number, date of issuance/expiration, and where issued on a piece of paper to keep in your pocket. That way you won't have to take your bag out to get to your passport, in order to fill out the immigration forms. There's a pen in the amenities kit which you can clip into the pen holder in the small storage area over one of your shoulders.