I purchased this suede cleaning kit for my off-white suede shoes that had become pretty dirty.  I was specifically looking to remove some water spots that had formed on them.

I had read reviews saying that these kinds of kits don't really work, but they do!  However, you can't expect perfection out of them.

I found that with enough work using the eraser, you can get the spots and dirt to go away to the point where it is unnoticable.  Some disappeared completely.  Be careful though - the eraser causes a lot of dust!

If you have some dirty shoes, I recommend getting this kit.  It's not a miracle in a package, but it gets the job done.

And as a side note, I don't recommend using vinegar to get spots out.  No matter what those online guides say, it just made my problem worse.