Yes this set seems expensive, but it is well worth the money. I have been using these on a gas stove for 3 months. They work really well. Heat distributes fairly evenly; non-stick surface is very robust; rubbery handles can take the heat of the oven; lid handles don't get hot during cooking so I no longer need to use oven gloves to pick them up and give the pan contents a stir. The lid works very well - the shape helps redirect steam back into the pan and the vent lets out enough pressure that boiling over is avoidable.
The construction feels sturdy - especially the use of rivets for attaching the handles. And I am not worried about dropping either pans or lids - they don't feel like they would dent or break easily.
These are a well designed set of pans and I will be buying more as my old ones disintegrate. Well worth the investment.