Didn't consider the lack of under-the-seat storage! Thanks so much! I would go crazy if I couldn't store my carry on napsack under the seat in front, as I usually keep my entertainment with me there (back when we travelled without kids). So yes, it will be essential to have that storage available to us for kids stuff especially.

As for the proximity to the washrooms, I actually prefer being somewhat close to them just because I can see if anyone is queued up to use them, and if not, I can quickly dashed to them when I need to use one. It's noisy enough with the engine noise that I find it drowns out even the slamming of the doors. But we are definitely not next to the washrooms. At least 4-5 rows away.