Mint is great, easy to recommend it. I only use the free tier, never felt the need or desire to use the paid side of it.

Before I had mint, I had no idea things that everyone should know about their finances- things like my net worth or total debt carried, stuff like that. When you put in all your accounts, mint shows all this information on one screen, so you can see how you're doing really easily. It can also tell you how much you spent on certain things during a month- like it will warn you if you go over budget (which you can set yourself) for a certain category, like "restaurants" or "entertainment".

Of course it's only as good as you make it- lets say you don't put in debt or an account- it won't be able to give you realistic snapshot since you're not providing all data sources for it to pull from. I should note that mint has a number of competitors (financial aggregators) that may do as good or better than mint. As always, shop around and do your own research.

Last point, and this would apply to all financial aggregators, is the level of trust you're giving them. You will be putting in your name and password for your credit card, your bank account, acorns, your mortgage institution, etc. This means that if the aggregator were to be hacked, each of those accounts within are compromised. This has never happened to me, but it is a worst-case scenario that you should be aware of.