pc spec: intel dual core 2.6ghz, 4gb ddr3 (800mhz), integral vga (intel 512 mb)
previous linux: lubuntu, ubuntu, linux mint 17.1 (all 4 version: kde, mate, xfce, cinnamon), vertorlinux, peppermint (maybe i forget few other)
note: sorry for my bad english, i am hungarian.

Review:
installation: yet Deeping the most easy/simple but beautyfull installation what i installed, the booting from usb is working well without any problem, its don't ask useless question.


preinstalled programs: i like the deepin music player, its look nice, personally i missed the openshot (best&simple video editor), simplerecorder(best&fastest video recorder), character map (like in mint/windows with select language spec character and copy), gimp (free photo editor), firefox (like other broswer even chrome the default but still preinstalled ff could be nice), other side what is implanted is ok
- i tested crossover with notepad++ and its worked.


update (Rainside mirror): when i installed this os i started to update, its showed i need download ~600+ mb but around 2/3 way its broked and when i restarted the update proccess its showed 400mb left and allways broked in few second (this was yesterday night), with downloading programs like oneshot or lamp directly from store also stoped at 0 byte, today seems the updateing work because already at installing packages and have no error, tested the store also with downloading soundconverter and now downloaded well and installed.
- update speed was at max (well its 1.2mbyte per second to me)
- store look cool, so more beautifull than other linux distro what i used before
- i miss from store a really nice & fast converter, something converter was its name, i used on linux mint from their store (its convert a movie format to other movie format or to mp3)


desktop organisation and Control: i am not fan of the windows 8/10 launcher kinda stuff, i prefered the old start menu etc but here it is ok because what i use often in few click can place to desktop and bottom bar also can be hide, control panel/settings (right side) look very nice, have nice option, other side the desktop part is nice, also the right click menu is simple and contain all what i need. About theme, don't have too much theme but what is the default its look enough nice to me and not that boring like other popular distros (except few).
- i miss from linux mint what isn't here (language specific character shortcuts like (key is a selectable key from keyboard):
key + o + " = ö, key + o + ' = ó,  key + u + ' = ú,  key + u + " = ü, key + i + ' = í, key + e + ' = é, key + u + ' = ú, key + a + ' = á)


speed: overall the os working good, maybe a bit better than linux mint 17.2 KDE , so i like it because same time look nice/eye candy the os.


filesystem: when i copy example a directory, with alot small files then i really miss the progressbar, because its at each files appear and disappear when finished but if i copy 2-3mb and not gigabytes then coping progress bar window blinking so can't stop or minimize or atleast check the overall progress (well this happened when i copyed multiple directory from external hard, if i copy a single directory i watch the progress still the window is enough huge because each copying item have a individual progressbar)

stability: early to tell anything except installing with ubuntu command the lamp and other stuff worked well and still got no freeze or something

Conclusion: i really like this distro, i think could be really competent with linux mint.