Have it, love it. No problem with the zippers. I'm sure mine are YKK and ebags say they use YKK......
The split sections are a real boon for me - with the end pouch used for toiletries. Also the ability to expand and check if you need more space.
In solid back it looks very professional and is fine for taking to the office on business.
However - cabin bag and weight restrictions are starting to grow and it isn't always an option to get this on board easily. I have switched to using the Weekender and the TLS professional weekender for most of my carry-on.