i have every one of those except the turbo one (so far!), and man are these perfect for retro gaming - betas, prototypes & so much more, all while avoiding the awful retro bubble!
ive played more fan translations, hacks & otherwise unavailable stuff (some N64 DD ports!) since discovering these years ago & moving away from repro carts. all while not worrying about failing battery backup, damaging hardware or any of that!
one day i’ll sell a kidney and get the neo geo one. meantime though, what do you guys think of em?