long story short: 45 years of occupying my country, behaving very badly there, many of their hockey players over many years behaving arrogantly and condescendingly at all times (not a recent thing, for example at the ice hockey world championship in Prague in 1985 everyone agreed that something as unpleasant, entitled and arrogant as the Soviet hockey players and their group (hotel, dealing with organizers,etc) they never met before. Really treated us like people from their colony. Today not much better. And the rivalry with them was always huge, because as the occupied country you can only stick it to you occupier in sports. So after they invaded us in 1968, at the immediately following championship (where they were somehow allowed to play), even though the Soviet team was the strongest (and ultimately won the tournament), our Czechoslovak team beat them twice, brought half a million people into the streets of Prague and tons of arrests..
After the fall of communism the rival try became less intense and important, but not that much. And seeing how the country behaves once again, and many of their players supporting events, it does not exactly turn you in their favour. So there is nothing to like and much to dislike.
They are very good and skilled players, and of course that is something I respect immensely.