Personally I have come to like the TagConnect, yeah its an investment to get one, but I am seeing more and more boards that use the TagConnect. To name a few, Nordic dev baords, Texas Instruments boards, etc. It saves board space and BOM cost on pins/connectors.
I am starting to use TagConnect on boards at work, see how the other people at work react to it, I really didn’t ask before I had the boards made. Not leaving my personal cable at the office to disappear, they will have to get some for the office.
If you do buy one, get both a 10 pin and 6 pin version, with all the pins wired straight through (with the larger 0.1″ connectors). You can make adapter boards to route the pins as you need for different uses.