I reviewed Mint.com on here back in December: you can read the full review here.
What really fascinated me about Mint.com then, and continues to fascinate me about the free personal finance tracking/budgeting service today, is that it allows people with very complex financial pictures see everything at once.
This is a powerful ability. When our finances are scattered amongst many credit cards, investment accounts, a 401k or Roth IRA, checking accounts, online savings accounts, etc... it can be almost impossible to climb up and gain a clear view of where we stand financially.
So this is the power of Mint.com, and other services like it, such as American Express' free new tool for their charge card users. If I had to review Mint again today, my stance would stay pretty much the same, although since then a few more of my friends have started using the service and all of them seem to love it.
Personally, I don't use Mint, and here's why: I've simplified my financial life to a point where I don't need to. I think this is really the end goal, or the dream, for most of us. Now, if I just had more money in some of those accounts, I would be really thrilled.
I recently paid off all of my credit cards, for the second time in my life, so I no longer have to worry about due dates or late penalty fees. I don't think Mint.com would be useful to me, because my accounts are easy to keep track of in my head:
2 checking accounts, one at Chase, one at Bank of America. Although it's not perfect, I try to use BofA mostly for business-related expenses, and Chase for personal day-to-day stuff.
Company 401k plan. There is no reason to check this balance on a weekly, monthly, or even yearly basis. My 401k is for the long term. I contribute from my paycheck automatically and forget about it. Plus, my 401k plan provider sends a paper statement once per year showing the overall return for the year. That's all I need.
Roth IRA. Also very long term. Checking the balance weekly or monthly would only freak me out, as I invest in MUCH more aggressive stuff using my Roth IRA (my 401k has only a handful of options). I shovel in more money whenever I have enough "extra" cash in my checking accounts to feel comfortable about doing this. Checking the balance once every 6 months is good enough for me.
That's it! No other accounts to worry about. All of my credit card accounts are still open for credit score reasons, but have a $0 balance and are not in use (I've shredded the physical cards).
So yes, Mint.com can be a great tool if you have complex finances, but your long term goal should be to simplify to the point where you don't need personal finance software.