Do exactly what it should, in a very smooth way. Simple setup to access the wifi then it's just to print from the computer or phone or camera with wifistöd.
It is also possible to print from sd card directly with simple editing capabilities via the device's buttons and tiny screen.
Very satisfied. Picture quality is marginally better than my old sublimation printer (a Sony DPP-FP35) but it is still at this point that I'm making a star's deductions on the score. Promising lab quality, but if that is the case, the labs have been worse than 10-15 years ago when I last used them.
Picture quality is thus good, but not perfect. An inkjet printer can handle probably the better way to prepare, but is more expensive and osmidigare and shrinks when they are used infrequently (as they always, without exception, made for me).
Very happy with my Selphy, but wish you could get your hands on compatible mat photo paper. To my knowledge, there is only blank paper to this type printer (?).