The Turbo Everdrive had some problems and KrikZZ had to release a new v2.4 but he offered free replacements to all customers with older versions (regardless if you had problems with the old one or not). But anyway, I generally agree that Everdrives are the way to go.
I don't have any experience with the EZ Flash IV but I do have an EZ Flash V for the DS. It functions together with a DS flash cart and works pretty well, patches roms on the fly... but the GBA Everdrive will be standalone and clearly better, more intuitive, etc.
I don't have any experience with the EZ Flash IV but I do have an EZ Flash V for the DS. It functions together with a DS flash cart and works pretty well, patches roms on the fly... but the GBA Everdrive will be standalone and clearly better, more intuitive, etc.