I'm a big fan of AwardWallet. I switched to it about two months ago. It easily and reliably checks each of my accounts. I can manage my husband's accounts on the same page as mine. It's nice to be able to check his balances with the same click when I check mine. I very much like the summary of changed account balances that I am sent weekly.
I'm less interested in the hotel and air reservations that it picks up from my mileage accounts and sends me. I use TripIt to collect that information.
I stubbornly held on to my MileTracker account for many years. Despite email exchanges with them, they rarely corrected programming problems. AwardWallet is a pleasure to use as it reliably accesses every program.