Is not so interesting as in the past; they have no VAT, but now with web sites and promotions, you have to choose product and have a look. Oil and some comsommable are less expensive there.
Sure nice prices on tobacco and alcohols
If you're after waterproof boots it has to be Goretex ,any boots with the GORETEX label are guaranteed waterproof and breathable by Goretex themselves for the life of the product as I proved with my claim for my 11 year old boots that covered 60k+ miles. Lots of other boots claim to be waterproof with all different "waterproof" membranes but lots of them will let in a bit of water in extreme conditions or after prolonged exposure to rain, not Goretex. Every bit of my kit has the Goretex membrane, boots, gloves, jacket and trousers. it is more expensive but as the old saying goes, "you get what you pay for"
GTX is great, but honestly in most cases you pay a lot for the name, because if they rarely fail they won't have much repair jobs, so the lifetime warranty is nice, though on jackets it's only about the GTX membrane, if seems fail they will make you pay the repair.
I got my boots because they weren't that expensive and in boots it's only GTX, nothing else to compete in the market.
For my travel clothes however, went to a Polo motorrad shop and tried a pant/jacket pair from Rev'it all GTX, well the whole thing was about 1200CHF, I looked around and saw another ensemble this time with Sympatex layer, which cost me barely over 400CHF and I can tell you after 3 full rain days in Norway, with trucks splashing me on highways in Germany up to the helmet, I never got wet nor cold even riding with 6°C.
Of course Sympatex doesn't provide a lifetime warranty, but frankly I've read on mountaineer or campers forums, that Sympatex seems to be as durable if not more than GTX, so if prices are 30% of GTX it's a pretty viable option even if it would fail 3 times !
I'm sure my boots soles will be dead before the GTX, so then I don't think resolling would be very waterproof, might as well buy something cheap if you think about it.