A paranoid noob here - any gotchas using Cap1Shopping?

I knew about cap1shopping for a while now. I have the chrome add in on my PC, but also have rakuten and choose that most all times. I get a small check in the mail every couple months.

Not sure what happened, but seeing loads of deals from Cap1Shopping in the last few days.

On the ebay website and in email - spend $50 / get $50. Lowes - spend $200 get $100.

Etc.

Are these legit? Do I get cash that I have to use on their (cap1Shopping) website for overpriced items?

And there's all these terms and conditions. Paranoid that I'll get something from Lowes and from ebay over the numbers they say I have to spend... and then get tripped up with the small print? Didn't click on a link the right way / didn't do something that they say 'sorry, you don't get the money'.

Like mail in rebates back in the day.... not worth the trouble to find out they didn't get it in time, I didn't dot an i or cross a T, etc.

Any thoughts?