Hey Snowman, I went to the LS dealer yesterday and checked out a XR4155C.
1) I really liked the looks of the machine, wide and low like I am looking for. Overall height will allow it to fit under a 8ft overhead door, and wide enough to help prevent roll over.
2) The hydraulics are very strong, but like you said are a little slower than some. I did not see any issues with bucket flop, or steering under load.
3) They only had a shuttle shift available, so I can not comment on the hydrostatic. The 16 speed transmission was pretty nice tho, but not what I want. Shifted very easy, and the clutch was VERY smooth.
4) Cab layout was kind of uncomfortable for me, at 6ft tall. The steering wheel was just too low on the column, even when tilted back. I found myself leaning forward to reach the wheel or the shuttle lever. When I slid the seat forward enough not to lean forward, the foot controls were too close. This also placed the remotes & lift controls in a very awkward location to work.
A telescopic column would be a VERY nice add to this tractor. A guy may be able to make a extension for the shaft to help with this.
5) The seat is just awful. Arm rest are very cheaply made and the seat has almost no padding. I would replace the seat. Maybe this has something to do with my 3.5 hr drive to the dealership, which is another concern.

6) The 3 cylinder turbo engine was quiet enough with minimal vibration feeding through the frame into the cab.
7) VERY tight quarters inside the engine compartment, I would not want to work on this engine. I am sure this is typical of all modern compacts.
I believe the machine is VERY capable, but certainly not the most comfortable. I believe TYM and Kioti has them beat on the ergonomics, and access to filters. I am still on the fence after my visit to the LS dealer. Looking at TYM again today, maybe the Kioti.