My old man has a 1460 TDC (which I'm assuming is the next model) and he is the second owner from new and its hardly missed a beat.
Makes good, well formed bales which are always packed consistent.
The down sides are it won't make silage very well and if the hay is a bit wet or damp it can struggle to pick it up properly. If the hay is slippery, and this does sound silly I know, you will also have a hard time getting the start of the bale to roll. On different occasions in one part of the paddock if a new bale was started there the belts would not grip the hay and it would not spin and you end up with a jam you have unload by hand. This has only happened a handful of times in 10 years though.
Biggest problem is the electrics. The wiring loom is prone to breaking down and he has constant trouble with the bale size sensor. i don't know the setup on the 1450 but if its the same as the 1460 and uses 2 magnets that when they get close one senses the other, the at random times it won't work and if you are not watching, you will over fill the baler and cut out the pickup. Putting string on when this happens is a massive pain.
Also is the PTO shaft is offset as the 1460, you can only realistically turn right while baling due to the load the universals will get from the angle if you turn left. Not a major problem, but something that would be annoying if you rake in rows instead of going around the paddock perimeter.
Apart from that, i like them. Never broken a belt, rarely breaks pickup tynes. Parts have been fine here in Australia, can't comment on elsewhere