I have one and used it to build a large quantity (140) of Arduino, RPi wiring harnesses and connect then to boards. It fit my hand much better than larger units and resulted in less errors overall. I continue to reserve this for precision work because I fear at some point it will break and I will be stuck with my other kludgy irons. At $79 it was still a bargain.
For those who may not be familiar, this is SainSmart’s rebranding of the Miniware TS100.
Tempting but those positive Amazon reviews have got to be some of the most apologetic - for defects/problems - reviews I’ve seen in a long time.