It’s awesome. I recommend not linking bank accounts anyways and doing all transactions manually. Helps with keeping track with your budget better, imo.
Problem is when you procrastinate because manually importing transactions and correcting them is just annoying enough to make it a hassle. Then the transaction batch gets too large and you can't remember details anymore so you give up and don't track your budget at all.
I have my spread sheet set up just how I want it, based on what I am looking for in a money management tool. I've come to accept that no other tool will do what I want as well as the thing I set up myself.
I also have a robust spreadsheet that has enough VLOOKUPs to choke a supercomputer. Mint was just an aggregate for all my financial institutions that I could then export from the site and into my spreadsheet. I'm willing to pay for this aggregate service, just not a lot.
I can export spread sheets from my bank website and then have them automatically processed. I do it once a month, and it's only a couple of minutes to do. I can understand the appeal of an aggregate service but I don't find it helpful in my case.