4 stars: Worked fairly well for just a few days then started to crash on startup every time. reinstalled and reloaded all my old game states (after copying and pasting them into a different folder for safety!). straightforward. still cant sort out the standard lag caused by playong with sound common in most ds emulators ive used, and the autoscan doesnt seem to work at all finds 1/4 working ROMs and cant find games I've played recently!
4 stars: it kept crashing... I dont know why. I opened the app, chose the folder, it crashed. Now every time I try to open it, it immediately crashes again... Update, it worked again the day after, I don't know why. This might because my phone turned off that night. So try restarting your phone, and/or wait a day
3 stars: Its okay but its laggy/some roms don't work and sound is pretty off. The adverts weren't too obnoxious. Hopefully its gets better performance because ui, display and options are probably the best out the bunch which is pretty important for ease of use but the performance just isn't there.
3 stars: only rating a 3 because like some have stated, when you delete a rom you have to uninstall the entire app and re install it. I suggest if you have to do this to make a temporary file to store your save games then transfer them to the re downloaded app. If this is fixed I'd rate it 5 stars.
4 stars: Pretty solid emulator all you gotta do is rate it and you have access to all the save and load options with no ads. Only...