Emotiva XPA-1 Monoblocks ?

What do you think about the XPA-1 MB's in terms of sound quality and reliability ?
The more powerful mono's XPR-1 can be option too .
what do you think ?
A recent thread...

The majority of positive responses revolve around cost and watts and rarely contain any actual in home sonic comparisons.
Considering these if my current amp (NAD) does not match well with my Mirage OMD28 speakers.