His last 2-3 games last year he was actually pretty good, at least IMO. = to Stanley at the same point, but Stanley was given the rest of the opportunity. No complaint with that but it was Niku's last chance here.
I doubt he catches on with any other NHL team. He will find a place in Europe and probably excel there.
Maybe he got better but there are a few bad shifts in his first few games (where he was paired with Morrissey I think?) where it was real bad. I was never high on Stanley but I wasn't upset when he kept getting the call. I'm far from the type of person who values size at the expense of skill but Stanley's size brought an element we were weak in and he just as, if not more effective as you said.
The only regret I see, as Surixon said, is not moving on from him sooner while we might have been able to get some sort of value out of him. Once we drafted Heinola and he kept improving it made keeping Niku untenable in my opinion when we already had Morrissey and Pionk as well.