There was a time when JSONMBS was, at least in many aspects, performing much faster than the Xojo JSONItem class. I guess there should be a thread about performance tests somewhere here, dated a few years back.
I think I remember that Xojo improved the internal class’ performance, so the tests results might not be valid anymore.
On the other hand, JSONMBS needs much more verbosity, like having to use a class factory when you want to add some kind of value.
@Christian_Schmitz I am using it in a client’s project for gathering information sent to a server, but redesign if necessary would not cause too much trouble.
EDIT: Found the thread: JSONItem replacement - #47 by Kem_Tekinay