To be brutally honest, I ditched them all after they had so many sync issues with playlists (not Dapper; haven’t tried Dapper yet) that it became intolerable. I kept only an iPod Touch 6th Gen, Sony Walkman NW-A45, and Pioneer XDP-100A. The last two support proper folder alphanumeric ascending playback. So I dump all my “playlists” in one folder per playlist each organized alphanumerically with leading zeroes and play the folder view.
The stuff I sold includes FiiOs (X1, X1-II, X3-II, X5, X5-II, X7, X5–III, M6), Cayins (N3, N5-II, N5), Shanlings (M1, M5), Pono, Onkyo DP-S1, Cowon Plenues (D, J, R, 1), Opuses (1 & 1 metal), LG G7 ThinQ, Luxury & Precision L3, Lotoo something, Hifimans (HM650, MegaMini), iBassos (DX50, 80, 90), Sony’s (ZX1, ZX2, ZX100), ZTE Axon 7 Mini, Astell & Kerns (Jr, 70, 300), a variety of Chi-Fi from Xuelin, xDuoo, Hidisz, Hifi Walker; and a bunch more I can’t even recall.