They're good solid little guns. The upper class tended to look down their noses at them, because they were mostly machine made. They had dovetailed chopper lump barrels, the same system that Winchester "borrowed" for their model 21. Pretty amazing for what was considered a cheap gun at the time. Retail was 15-18 pounds sterling, and came in a couple of different grades. Some were fitted with ejectors, but I've yet to see one.
When you have your hands on it, with the action closed, take the forend off, hold the muzzle straight up and give it a shake to make sure nothing rattles. If the barrels are loose, it can be fixed, but will effect the value. With the barrels off, suspend them on one finger by the lumps, and give the barrels a tap... they should ring. If they sound dead, then the ribs are loose.
Also, when you have the barrels off, check the proof marks. A lot of these old guns have 2 1/2" chambers, although some were built with 2 3/4, considered heavy wildfowl guns by the Brits.