I received mine last Monday, just short of a month since ordering.
First impressions are good.
Checked it on an FM dipole which I believe is tuned to 91.6 Mhz. It returned a min reflected power on 91.4 but I will forgive it as the aerial is only about 8 feet up and the coax is dangling under it so may be throwing if off a bit. It may not have been calibrated to the band when I checked it also.
On one of my HF, aerials, it gave me a reading of 1:1 just off my operating frequency. The aerial is good for +/- 200 Khz (about 1.5:1 at the extremes) so happy with that. Z= 48.5 Ohm Zs.
Measured a new inverted MW antenna I just put up. Lovely curve on 1430 Khz. Z=40 Ohms without the atu so matching it should be easy enough.
I've measured several filters I have here, both homemade and factory built with interesting results. I think this could be an invaluable tool for building filters.
The build quality is OK. Pity it's not a in an enclosure.
Spent most of the morning I got it making up SMA patch cables.