I'd say they're better than okay...Leica is consistently rated among the best optics and has been for quite awhile.

I have the 8x42 Trinovids (I needed the better dusk & dawn light gathering of the 42mm lenses for the woods I usually hunt) and like ozhunter said: if I had to replace them, I'd probably start by looking at the Ultravids. I'll also say that while the 8x have been good, I've wished on many occassions that I'd bought the 10x42's, especially when hunting the mountains.

If you can get them at discounted rates consider yourself lucky. In the US you can expect to pay $1,000 to $1,300 for the 8x32 Trinovids and Ultravids are $1,600+.