Quality is good. Powerwave Controller Phone Mount + Note9 are much better than Playstation Vita and Open Source handhelds (e.g. RG552, Powerkiddy and Retroid), when I play retro games on emulators. I installed PPSSPP Gold (for PSP), DuckStation (for PS1), AetherSX2 (for PS2), OpenBor (for selfmade games) and RetroArch Plus (for Capcom 1, Capcom 2, NES, Famicom Disk System, GBA, GBC, MAME, MD, MSX, N64, Neo Geo, PCE, SNES, SEGA Saturn and WSC). It is worthy buying this product if you like to play games on handheld stuff.