Performance:No lag playing any streaming I have tried. Of course, internet speed to your device matters.No lag playing any local videos or music.Web loading is snappy and no lag I can detect.I am not a gamer so cannot comment on gaming performancePorts:adequate for my needs and all worked fine although I would have liked an optical out for the audio.I do see a bit more "movement" of the sockets than I would like when plugging in and removing cables.  I would not want to do a lot of repetitive plugging and removing over years time due to concern for sturdiness of case and ports.Quality:REALLY nice to have a 120/220 built in power supply, no brick needed or wall wart needed!Casework is lightweight plastic but attractively embossed top.Since heat is the killer of chips, I have installed a windows fan control app and manually run the fan at 55% and I cannot hear any fan noise.Expandability:I added a second CRUCIAL brand NVME SSD 1tb ram chip.  It installed fine however the EQ-14's integrated NVME heat sink which is part of the mounting in the EQ14 does not seem to fit well onto the add-on NVME chip - the conductive "mats" on the heat sink don't touch the chip.  I fear this may cause the second NVME to overheat and fail, and with the integrated heat sink there seems no way to install a sink specifically to fit the add on second chip.  So we will see.Support:BEELINK HAS BEEN GREAT! I screwed up when adding the second NVME and formatted the supplied NVME disk and wiped out the Win 11 image!  I had to download a new image from microsoft and install, but of course they do not supply an activation key with the public Win 11 image.  I contacted BEELINK support and they IMMEDIATELY provided me with a Win 11 activation key for my mini pc serial number!  GREAT SUPPORT!