How many speakers are you using at halfway volume?
I have the slightly less-specified NR1508 which I picked up off ebay for under £250 lightly used and I must say it's a very impressive AV Amp. 50W is certainly more than sufficient for us in a room around 150sq feet, even at halfway volume our neighbours can hear hence we don't go high. What I find quite surprising about this amp is how musical it is, it really sings with my QAcoustics speakers - in fact I found it a step up from a Cambridge Audio stereo amp it replaced. Spotify Connect works flawlessly, so does bluetooth and internet radio. I don't think I'd need to upgrade for a while.
It's an amplifier though, with streaming functionality?
I personally can’t see any reason why to get one, as nowadays all digital and get streamed via internet
50W is rated like this Power Output (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive) The Denon AVRX2500H a much better buy (if you don't need a slim AV).