From the reviews I've read... Autofocus appears to be snappy for the 23mm. Agree the CA and focus distance are not desirable attributes, but for the price of 'admission' it seems to be a fair trade-off.Yes, this is one of few possible replacements, but I'm not convinced because of much worse minimum focus distance (30cm VS 16cm) and slightly worse reported CA and autofocus. Hovewer f1.4 is tempting, so I will probably try Viltrox in the future when see some good deal on used market.I haven't owned my Sony system long enough to say for sure, but right now my answer would be similar to your choice... I would go with the Viltrox 23mm. The field of view provided by low-20s focal lengths matches the way I tend to see things (usually), and I really appreciate having f/1.4 for indoors. Plus, I just like the look of how that lens renders.

