It aint 100% ..........yet
I bought the tempest under the assumption that it was 100% waterproof like all the ads say it is, but when I got it home and read the instructions it says in order to be 100% waterproof all the main seams need to be sealed, inside and out. And it takes about 4 passes to do it. And each time it is supposed to dry before adding another pass. I spent about 2 and a half hours on one pass on the outside alone. By my calculations its gonna take me a week and a lot of hours just to seal a $500 tent that is supposed to be 100% waterproof.