On the contrary, I actually quite like Sony (I'm using a Sony TV, home theatre system, and BT speaker), just not their A35/45 series DAPs (never heard the preceding A series Daps).
Ok, for starters, how many DAPs have you tried before? Maybe it's not obvious right off the bat but if you have heard at least a few decent DAPs, you'll know what I'm talking about. It's just too plain sounding. It doesn't have the dynamics, tonality, or anything to warrant it being a standalone dap.
The A35/45 is pretty much the worst option as a DAP in its price segment. Not because its bad in any absolute terms but its just too mediocre. You don't get more power compared to your smartphone, it doesn't sound any better and now that LDAC is not Sony exclusive, there even less reason to get it.
You may argue that it has better interface than most players in its price range, it has a touch screen, it has stable firmware etc but it underperforms in the most important aspect why people buy daps instead of simply using their phones, to get better sound quality.
Enough said.