I also own all of these except for the ][c — The Cube has held up remarkably well and I'm still using it on a daily basis. The Clamshell however used some reall

I also own all of these except for the ][c — The Cube has held up remarkably well and I'm still using it on a daily basis. The Clamshell however used some really cheap plastics since it basically started to fall apart just by sitting on the shelf.