We just stayed in 9510 on the Fantasy in May and loved it! It is very forward, but we couldn't tell any difference in the movement of the ship from midship v. our room. It was a really great location. We took the forward stairs a lot, especially going just a quick 2 flights up to 11 to the pool, drink station, & Cabanas. Also, the Walt Disney Theater is forward. The forward elevators were rarely crowded like the midship ones.
As far as the inside of the room, we were pleasantly surprised with the storage space and found we had enough drawers, shelves, and closet space for all 4 of us: me(DW), DH, DS(16), & DS(7). The boys (and us) really enjoyed the huge porthole window and seat and being on the side of the boat that looks out onto all of the ports. The room was extremely quiet. There's not much foot traffic in this area and little to no noise in the hallway where you can actually hear it in your room. We did a few loads of laundry during the week, so it was very nice to be that close to the laundry room.
I don't know if you have kids, but in case you do, DSs were quite comfy in the bunk/pull down beds. We also enjoyed having the split bath and round tub.
We were so happy with 9510 & agreed that we will book it again next time, which will hopefully be in 2 years!
If you have any other questions, I'll be happy to try to answer them. I stressed and stressed about our room selection and changed it about 4 times before I stuck with 9510, so I understand!