Also read people are having problems with the quality of the Wellers.
Well, you'd never find any product that has 100% positive reviews, there will always be someone who is either not satisfied (or have happened to have gotten a bad unit), in general though, Weller is a very reputable brand and has good quality control.
But I don't think I want a cheap portable iron with an improper soldering iron holder, probably with a pvc cord, which many people are saying are getting errors.
Personally, I think the minimal stand it comes with it is fine and is good enough, but that's subjective I guess.
It does come with a flexible cable though, and errors wise, I've read that some people fixed the issue by simply replacing the tip, but wraper may also have a point on this subject.
That one isn't servicable like the 936 is.
To be honest, pretty much any soldering station is "servicable" (as long as the the person servicing it knows what they're doing!)
For novices though, I agree that 936 is more servicable (purely because you can get spare circuit boards for it)
As said before though, even if you purchase it second hand, you have no way of knowing for 100% whether it's an original or a replica.
And most replicas don't use the A1321 (but A1322) and you wouldn't be able to use those spare circuit boards for it.
So if in doubt, just settle for a replica (that is said to be using A1321), or at least try to look at the sticker on the cover.
The original 936 (or a decent replica at least) should have a 3A transformer (vs 1A on A1322 ones)
Edit: And on a related note, The Bakon 950D supports US electrical voltage (It's 100-240V), but it comes with an EU power cable by default, so you'd have to either get an adapter (or simply cut the EU plug, and put a US one instead if you know how to go about it)