I traded a BX2200 for a BX23, and I have found that there are differences in the tractors. I had the 4-way valve on the BX2200, but it was standard on the BX23. The loader control valve is also attached to the tractor full time which I find to be a major improvement.
As for the hood....I figured out how to get the hood closed on the BX2200 without a major problem. I read that they had improved the BX23 hood, and I looked forward to seeing a big improvement. That isn't the case though, all that was changed was the way the locking pin is engaged/disengaged. The BX2200 had a straight push pull type lever on the dash which if you pushed in by hand instead of just closing the hood and hoping the spring pulled it forward, worked fine. The BX23 hood is identical, the pin and hood catch are the same, but now you can't just push the pin forward. I found you have to wiggle the hood to get it to close.
I have also noticed that the BX23 is a lot harder to start in the cold. I don't know if I have a problem with the glow plugs, but the BX2200 never had a problem in zero degree temps. There have been times I didn't think the BX23 would start and it is garaged, where the BX2200 had been in a shed. If the glow plugs are working, and I have read about others having starting problems, I am going to purchase a block heater.
I also posted that there the attachments for the BX2200 did fit perfectly on the tractor, but with the different loader control, the hydraulic hoses for the attachments do not work. I had to purchase longer hoses to reach from the front attachment lift to the loader controller.
I have also found the safety features on the BX23 to be more annoying. The BX23 has the weight switch in the seat, so if you shift in the seat the tractor stalls. When the weather warms up, that is going to be "fixed".