Monoblocks

I'm considering a new pair of monoblocks.  Shopping list includes Constellation Taurus monos. They would be driving Magico S5's.   

Any experience with these these amps?  Anyone ever have to have had one serviced?  How is support in general?

They seem to have a broad array of products, which is attractive to me.  Once I find a good brand that seems to have a good line, and is well supported and seems to be continually growing and developing, I like to stay with such a company.

Any thoughts appreciated.