I did mine on a Dell laptop this morning and I thought I would give a rundown (got 2940, 735 average, band 1)
VR: (got 760) simple passages, mostly true false can't tell qs, but the inference ones were kinda hard. All in all pretty similar to medify
Dm: (got 800) same difficulty as official / medify however some of the logicy questions were a slightly diff style but not any harder
QR: (got 700) the * on my keyboard didn't work so I had to do it manually which wasted some time. at the end none of my keyboard keys worked but that was the last couple of questions so it was fine. Aside from technical issues, same difficulty as medify (some were hard tho do not be fooled). also lots of averages
AR: (got 680) hahahahah what a car crash. without revision I would have easily got 300. pretty much every pattern was difficult and I only got the ones I got because I had previously messed up similar ones on medify. guessed about 4 but clearly guessed lucky. only worked out one pattern for each
SJT: (got band 1) normal difficulty, if not easier those weird questions at the end of official mocks did come up
also my mum accidentally walked in at one point but nothing happened so that was good