I have a 455 VPT in a Manners (I am not wanting to part with it) and I like it a lot, but my two cents is to look for a 457 bc there is way better after market support for the 457 over the 455.
Aside from lackluster after market support, 455‘s have some issues: Sketchy bolt release. The bolt may stick if you run it too hard and sometimes the bolt will come out (which sucks when it happens on the clock). A Timney trigger fixed that for me, but there are not many options for after-market triggers. The bolt knob/handle is a one-piece (not threaded) so if you want to run something else you have to replace the entire handle (again only one or two options out there after-market).
Other than those two items, it’s a great little rifle and I really like how the Manners stock feels. The only knock on that stock is the lack of adjustable cheek piece. But if I had to do it all over again I would have gotten a 457 and probably put it in a chassis w/ M-lok as they are much easier to balance with the stubby .22 barrels. I had to add an Area 419 weighted Arca rail (which is good to have anyway for a bunch of reasons) as well as stack an additional weight on the front of the rail, plus a heavier contour barrel (fortunately the 455s and 457‘s can use the same after-market barrels).