I bought a TS100 because it was on offer, I paid £30 for the "Brown" upgrade version with a couple of tips.
Handy for portable use etc and can use on a home made battery pack.
It's a great iron, however I think some are missing the point with this iron, paying £50 or more for it then another £50+ on power supplies and things,
this no longer becomes good value for money and the money would be better invested in a soldering station instead, especially if it's used just on the bench.
And then there is taking in to consideration the intricacies of its quirks regarding grounding.