I recently went through a similar process and wound up with a NAD T185 which is the previous version of the T187 to replace my NAD M15. I am quite happy with the change.
The main advantage of the NAD for me was its ability to do stellar two channel analog and the Audussy capability. The ability to decode the latest codecs was my original drive but I found it did not make as big a difference as I had expected even with 7.1.
The switching problems seem to be resolves if you use the latest firmware. I got mine used for $1200, but you could find refurbs around with warranty but I don't know if they are still available. If cost is not an issue I would expect the T187 to work quite well also but am not sure what advantages it has over the T185 other than lower retail price.
The main advantage of the NAD for me was its ability to do stellar two channel analog and the Audussy capability. The ability to decode the latest codecs was my original drive but I found it did not make as big a difference as I had expected even with 7.1.
The switching problems seem to be resolves if you use the latest firmware. I got mine used for $1200, but you could find refurbs around with warranty but I don't know if they are still available. If cost is not an issue I would expect the T187 to work quite well also but am not sure what advantages it has over the T185 other than lower retail price.