First bad experience: I was doing late night online Christmas shopping and could not log on to my banking to transfer funds. I called ally and was told that they were doing a system update and all services were offline for 6 hours. I talked to a supervisor and asked why they didn't notify their customers that they would be down and he just didn't know.
Second bad experience: I deposited a $500 and $400 check using the banking app. It took 2 days to appear in my balance. But my available balance was short $700. I asked customer service why and they said that they wait an additional 3-4 days to make sure the checks clear. It clearly says in the Q&A that your deposit will be "available" the next business day after it is approved.
I don't understand all the hate against Ally Bank in previous reviews. I have had a checking account with Ally since 2011, after my local bank screwed me on overdraft fees, and have been very satisfied since. Signing up is painless, much less than what I have experienced at other online-only banks, and their website is very easy to use. In 2012 all of my debit card transactions were suddenly being declined and upon calling Ally it turned out my card number had been stolen so they froze my debit card. I wish they had notified me, but getting a new card was easy and I was not responsible for the fraudulent charge. I have only incurred one overdraft fee of $9 since banking with Ally and it was due to my own negligence. If you're tired of old-fashioned banking and their fees I highly recommend Ally Bank.
Ally bank account creating was very simple. Talked to Customer service via chat and they answered all my question quickly and professionally.
Mobile app is very well laid out and easy to read as well as understand.
I believe some of the negative reviews are self inflicted and would have happened with any bank (in my opinion). I haven't been inside a bank in over 4 years, now I can deposit any checks from my desk at home, this is a no brainier.