Nht2.5I and B&K amp a good match?

That sounds nice to me. NHT (especially the older stuff) has a reputation for being full bodied and maybe a tad hot in the treble. B&K is known to be a touch warm so I bet they mate well. The 2.5 is closely related to 3.3 which is one of the best speakers I have ever heard. Can't recall ever reading anything but positive accolades for B&K in general.

How do you like it?

I think its a great match,in time I am going to bi amp the 2,5's with a pair of sa 2 mono amps