I have crypto on Celsius, Crypto.com and BlockFi all for the purpose of earning interest. I have taken out two loans on Celsius mainly to test it. Celsius is very easy, I used BTC as collateral for both loans. You pay interest only with a balloon payment at the end of the term. There are three different interest rates, the more collateral you put up the lower the rate down to 1%. However do some math as you will not earn interest on your locked up collateral.

Loan durations on Celsius are up to three years and if paid off early there is a minimum payment of six months interest. I had a one year, 1% interest loan and paid it off after six months. To pay off early you need to email and they responded very quickly.

Actually BTC went up so much over the six months the loan was extremely over collateralized and I was loosing a lot from not earning interest on the BTC.

So for me Celsius passed all my test.

Cheers