We choose to "stick" ourselves in G on desk 7 all the time! We think that's the best deal since all the cabins are the same unless you are willing to pay quite a bit more. Never been bothered by any aspect having to do with location. If there is any degree of choice, we prefer the G cabins forward, like 706-719 (the furthest forward have a sector of view toward the bow blocked by superstructure).
Scott
Ren R7:'01
HAL Volendam:'02&'05
RSSC Mariner:'02,’05,’09
RSSC Voyager:'03,’05,’06,’07,’08,’10
RSSC Diamond:‘04x2
RSSC Navigator:’08
Silversea Spirit:’10
12:A&K Le Boreal,Antarctic; Voyager,Iceland
13:A&K Le Boreal,Arctic
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