I once actually wanted to use aave to take some leverage on some crypto assets but I'm glad that I didn't as the 'sure bet' to put the loaned stable coins in wasn't nearly as sure as I anticipated. It was a good lesson learned without losing anything.
I hoped to find the actual 'real yield' the Aave token pays along with the token inflation to see if it possibly would be worth getting some as I do see it as a project that likely will survive.
According to Google (not sure how correct it is)
The current estimated reward rate of Aave is 4.68%. This means that, on average, stakers of Aave are earning about 4.68% if they hold an asset for 365 days. 24 hours ago the reward rate for Aave was 4.68%. 30 days ago, the reward rate for Aave was 5.06%.
Aave's current circulating supply is 14.73M AAVE out of max supply of 16.00M AAVE. The current yearly supply inflation rate is 4.54% meaning 639,267 AAVE were created in the last year. In terms of market cap, Aave is currently ranked #8 in the DeFi Coins sector and ranked #16 in the Ethereum (ERC20) Tokens sector.
Aave has show resiliance. I'm personaly using it for more than three years now.
As for the place to put your loaned coins, that is a completly personal desicon and somehting to be managed from each individual and not conected with the protocol itself.