To be truly honest, after 63 posts you got your answer as to reliability. Just about every brand in that under 60hp range was highly recommended, and that is because tractor brands manufactured today are very reliable. Especially based on ownership comments. Normally scheduled maintenance is assumed. Good dealer initial setup is critically important to happy ownership.
Personally I don't think there is any unreliable tractor made today in the under 60hp group. From Kioti to Kubota to TYM to LS to Branson to JD, and many others, these are all very reliable tractors and will last 30 years with proper care, maintenance and some smart usage by its owner.
So your choice of tractor model needs to be made on other factors, like dealer accessibility, cost, hydraulics, tractor weight, type transmission and open station or factory Cab.
From your first post, you were nearly there to a decesion, with three tractor models chosen, and you were showing a preference for open station and HST transmission. So I don't think you can go wrong with any of those final tractor models. I liked the DK45 on the list. Will do everything you need at fair cost and high reliability.