Seemed to work fine during flashing I fried the board but my bad. See that you have a ESP programmer at hand :D. Soldering was nice memory readout before I fried it was 1Mb flash
2 stars because it's description is inaccurate. the USB dongle does not have programming mode, is only a USB to TTL adapter. you have to bridge headers by hand to put the microcontroller in programming mode. not going to open dispute because I can workaround it mine came without USB structural pins unsoldered, bad quality. but it's repairable. the ESP01 works without issues.