More and more. I first had to get to grips with the fact that, as a pancake, it works differently than other Z primes - i.e. not as noiselessly and quickly -, but optically and in terms of handling (size, weight, build), it's actually a very appealing lens. And as I've said a few times already, this thing's really well done optically - not only in terms of sharpness, but also in terms of aberration corrections. While rendering is very similar to the Z 28mm f/2.8 at first glance, close-up quality is way superior (no spherical aberrations to speak of, hardly any LoCA, if at all - so, in many cases, crisper and cleaner results than from the cheaper, bigger lens). The only issue I see is AF speed (accuracy is fine if you take your time) - but comparatively speaking, this is still the fastest focusing pancake lens I've shot with (I'm very familiar with the Panasonic 20mm f/1.7 and the Fujifilm 27mm f/2.8 - can't speak for Canon's and Pentax's offerings), and AF-C actually works (if noisily). Furthermore, yesterday, sealing came in *very* handy, and, as usual with Z primes, it worked flawlessly (I didn't have any doubts about that - I've come to trust Nikon on this). In summary, a neat, useful lens with a pleasantly small footprint and very good optical quality. The only caveat I'd add is that if you're going to use it as a street lens, zone focusing is probably your best bet.
M.