ECE traditional planes are one of the true bargains in the wood working world. For either ECE Smoother or Jack Highland Woodworking asks $110 USD. With either you get a plane with a good iron and cap iron that is usable right out of the box. Used Stanley's approach that price point and they will many times need work to put 'em to work.
Some time ago ECE went from the traditional "eared" escapement to a crosspin type escapement. I have both types and in truth both work well but from an aesthetic point I like the eared escapement.
Cut to the chase: While looking on eBay for Marple chisels and fillister planes I came across a "eared" ECE Smoothing plane that appeared NOS with the iron still in the wapper and in a box for about half the price of a new plane from Highland. It arrived the other day and it was NOS, every once in a while eBay works.
After sharpening the iron and on a small hunk of pine:
The differences between the ECE Smoother and the Jack are small. The Jack is a couple of silly mm's longer, so little unless they are side by side you would not notice and the Smoother's iron is bedded at 50 degrees vs. the Jack iron at 45 degrees. With a second iron the Jack could fill both functions.
Both planes side by side showing the difference between the "new" escapement and the old traditional "eared" one: