This will be the first time I've done one of these and will go on a scale of 1-10 for the whole product and explain my reasoning.
After a quick filing and clipping some of the bigger pieces I rinsed them in soap and water.
The details are very good with no bubbling or warping.
Over all for $8.50 USD for 10 they are easily worth it in my eyes.
I would give them a 8/10.
I decided to do a quick painting tutorial too :D.
While I didn't get a picture of it I washed the rubble/sand parts then over brushed it with VMA U.S.A grey then 50/50 with VMA white to highlight it.
Over all they turned out pretty good in my opinion.
(Not pictured I painted the rim with VMA black, I know its super important but I couldn't get the lighting right to show how important it is).