There are a lot of kiev haters around, and from my research they're mostly in the US who bought from particularly dodgy sellers in the 90s and 00s, sometimes out of the backs of magazines. They were delivered the worst that the FSU could offer in terms of both camera and service, and have never forgiven the brand. Even worse are the kiev-haters who've never owned one, or sometimes never even held one. Just don't listen to those ones (though sometimes it's hard to tell who they are).
But there are good versions, rebuilt and CLAd by places like Hartblei and Arax, sold by good sellers like grizzly33bear and others on fleabay.
Personally, I've never had a problem with my 88CM, it takes beautiful photos with Zeiss MC glass on it. Never had a light leak, or overlapping frames, none of that (not with original backs nor the NT backs, but get the NT backs if you can, so much easier to load).
I bought mine from just a regular 2nd hand seller, not arax directly, but they'd bought it from somewhere good.
It's also a CM version, rebuilt and tested and flocked and all that, takes P6 mount lenses (and original K88 / Hassy 1000 lenses on adapter, I've just scored an original Zeiss 250/5.6 Sonnar for Hassy 1000).
The Jupiter 250/2.5 is also a great lens (although not as good as the Zeiss 180/2.8 and 300/4 Sonnars, I use them more often nowadays).
So is this one up for sale a regular 88, or 88CM? If it's an 88CM, it's a steal. Even if just a regular 88 it's not a bad price, both the body and lens separately will sell for that much by themselves on a good day, if you hate them you can even turn a profit when you sell them...