I have not heard it in a head to head vs the Rogue Sphinx v2 - I think that would be a function of local enthusiasts w/ a combo of gear getting together for trying different components out.
Which I have done with my A5 in some local meetups. The results being some raised eyebrows of respect for the sound capability of the A5.
It all comes back to price point for a given component. At the right price, the A5 represents a vg value, imho. It can drive practically any speaker, does have great low end control, neutral and clean up top w/ no 'grain'.
But, it isn't tube-like warm, if that is the sonic signature you are chasing.
And I think it does have a v. respectable phono section. I tried a couple of value based ext phono pres, even the much hyped Jolida J9, but kept going back to the A5's phono input.
Given the pedigree of available A5s, and at the right price, easily worth a check in your own rig, and if it doesn't tickle your fancy - a very low risk to flip it back for little/no loss.
ymmv....