I had one and liked it, I still ended up with a Lilja on it though. If the specs meets your needs out of the box it's a good buy, if it doesn't and you're going to swap stuff around then I'd look elsewhere.
If you want factory suppressor ready it and the AT ONE are your only options for a heavy barrel, the AT ONE is impossible to find in stock though unless you're willing to pay over MSRP, you used to be able to find them for $550 or so shopping around and they were a great buy.
I'd still take a KRG Bravo over either the Manners or AT ONE though. Aluminum bedding block, fully adjustable, and easy to put an arca rail or anything else on.
If you don't need a threaded muzzle you can grab an american varmint and drop it in a KRG and be done for under a grand. If you want threaded you can buy the cheapest 457 model for about $450, a KRG Bravo for $400, and a Lilja barrel for $500 and only have about $200 more into it than a base precision trainer costs and less than a MTR version with the adjustable cheek.
Another thing to consider is that at the custom 457 or MTR precision trainer price range you're less than a grand under what you can put together a Vudoo or RimX for... You can get a Vudoo barreled action under $1800 with shipping and tax if you shop around, used KRG Bravos pop up all the time for $250-$300 shipped and then you just add the trigger of your choice. RimX are $1150 and Proof SS prefits for them are $500 and I've seen Proof CF prefits on here new or lightly used for $500-$600 either of which puts you right at the same price as the Vudoo. If I was going to have $1500ish in a CZ I would just go the Vudoo/RimX route at that point.
It's really just a matter of where you want to draw the line and whether or not you are going to or want to fuck with it.
