I tried in 2 systems, but just came full circle back to separates in both. I guess I realized I'm more picky than I thought. I also like to try new things, mostly DACs. I'll continue to keep an open mind and evaluate new integrateds, but I'm pretty happy with the sound I'm getting from my current separates. I went through some good ones in the last year: McIntosh MA352, Hegel H390, Accuphase E650, Mola Mola Kula (w/Tambaqui), Boulder 866 (digital). All great in their own right, but just missing a little something. I would have stuck with the Accuphase if I didn't happen upon my longstanding "dream amp". In my other system, I would have stuck with the Boulder if I hadn't tried an MSB Analog DAC, which the Boulder's built-in DAC, as very good as it is, couldn't quite stand up to.
The moral of the story is: if you're happy with what you've got, don't try anything else!!