I got one on an amazon deal a few weeks ago, tbh it’s not very good – unless you have a fan blowing quite hard the filament takes so long to cool that it’s sagged out of shape before it hardens; don’t believe any of the videos where people make a perfect cube or draw a bridge, I reckon you’d need an air conditioner on full chat blowing over your hands to cool that quickly.
One thing that does work quite well is to draw the faces of your structure on greaseproof paper then assemble the sides into a 3d shape.
The end does get hot but mine is well insulated and unless you touch the ceramic tip only gets warm to the touch.
edit: it was one of these but I only paid £10 for it, I wouldn’t want to spend £35 on one