Approx 5w ago my ERASynth+ was delivered to UK site, blame on me that just now managed some free time to test.
Out of the box unit was able to communicate like wireless AP using notebook and W10 / firefox browser.
USB Serial communication goes well, and W10 PC application is working too.
Good PS is must, I finally managed to use one 5V / 2.4 A PS from tablet.
RF out and SWEEP is working but some bugs are present so firmware update is necessary.
All of that is bit more complex than with Lime, you need arduino IDE and duo / ESP installation.
Than firmware upgrade for duo, and ESP, plus ESP web application.
That is on to do list soon…