The reason I originally posted this was if this cheap device worked well, I would ditch my HX espresso machine and get something much smaller to pull the occasional espresso shot with.
It looks like the only good solution would be to buy an older manual lever espresso machine.
After having a (recently rebuilt by me) Sama at my home for a small while as well as another high desire Lever machine I have come to these conclusions for myself;
1. Levers saren't for me I dont understand the appeal. this looks like worse than a lever.
2. If you are dead set on getting one, make sure you did as I did and borrow one for a time before you plunk down some serious cash for one.
3. HX is nice but I have been really happy with the Gaggia classic with ms. Silvia steam wand.- Cheaper, easier, better, etc....