I received my 1530USB about a week ago, and it works flawless.
I have successfully recorded my favorite game The Newzealand Story, converted it to a .tap file, and wrote it back to a brand new casette tape.
I have a Phonemark datasette clone with a diod bar and a adjustable tape head, that give a great visual feedback of the "volume" of the signal on the tape.
With other words: My digital restored copy of the game feels much better than the original.
I have also started to record my old Turbo Games tapes, and it feels very good to re-record them. They where recorded with different tape head settings for every game, and it was always a mess to load them. Now I can re-record them so that all games has the same tape header level.
I have also managed to buy new tapes! Common casettes are not that common anymore...
Thanks alot for a great product and a great guide.