Personally, WD series kills me. I have occasion to borrow one, fairly frequently. Although I tend to bring and use my own Hakko, when I know I'm going to need to solder.
Tips do not transfer heat instantly, despite the marketing. Tiny tip = tiny thermal mass, and no amount of marketing changes that (unless it includes RF Curie point tech).
Tips do not last (I hear quality is hit and miss, depending on where they were manufactured).
Stereo plugs are not adequate connectors for a soldering iron tip, by themselves. Just nope. When you put lateral pressure on the tip (which you will when it doesn't heat the joint quickly) the whole iron bends.
The handle is too small. Every time I pick up the iron, the cord gets in the way.
The stand is too ditzy. Every time I put the iron away, it's a chore.
Also seen one out of a fleet of 4 of these go out of commission within 4 years.
WX might be different, but it looks very similar to me. For occasional use, it will probably be fine, I'm sure. It looks the biz. (But for me, the WD series is the slickest looking POS available for the money. I like other wellers just fine).
Oh, I should mention that the tip to grip distance is quite short and the handle is quite light weight, if you want that. That is personally annoying to me, as well. I rather have more reach, and shifting grip doesn't give you enough with this iron, due to the short grip. A bigger, heavier handpiece is more stable and gives better reach and utility, IMO.