I have gone the whole route of hand cleaning to the vacuum record cleaning machine and now the Ultra Sonic machine and the US is the best by far. I had wanted to buy the Audio Desk US machine but for $4,000 dollars it was expensive and I read a lot of owners having reliability problems and poor customer service, so I held out hoping competition would bring the price down. Years went by and not much relieve in prices until I saw the HumminGuru release. That is what I purchased, and it does a great job. It does only one record but it is fully automated simply drop the record in and remove it ready to play as it not only washes the record, but it dries it as well with a forced filtered air dryer.
I can't say how long term reliability will be as I haven't owned it that long but so far it is been trouble free.
I use distilled water, a couple of drops of wetting agent, and that is it. These have very small tanks so I change the water frequently, and clean the filters often. I have thousands of records so I clean a record prior to listening to it, and I purchased some small stickers and put a sticker on the back of the outer cover after it has been cleaned with the date on it. Every record goes in a anti static inner sleeve.