They look good but I believe have a waterproof rating of only 10,000. To compare df30 is 20000, Drennan 25,000, Halkon Hunt (goretex) 28,000.
To be honest paul the issue I have with that is that I have the df30 suit 2 months old and leaks like a paper bag, one good shower of rain the water is straight through the coat its rubbish, for 2 years I had the matrix rs20k suit , I can tell you thats not 20k that leaks worse than anything ive ever seen. Cant comment on the drennan waterproofs as they are the only ones ive not had.
I have a full sensas halkon hunt suit I wear in winter here thats fantastic never leaks never had and I never expect it will I look after it as described by the care instructions.
For me how a sample piece of the fabric performed under a laboratory test is of course an indication of waterproofing but what I will say is if you use top draw fabric and make an arse out of the seams and manufacturing of the garment then its not going to be waterproof. Equally if you have your garments knocked off a production line somewhere in the back end of mongolia the chances your buying a quality garment are zero.
That said, where I'd say the difference is with Leon grant / reel elite and also with halkon hunt is your getting a truly hand made garment thats had somes care and attention to detail in its construction, for me these overtrousers are bang on , they are waterproof and I'd highly reccomend the to anyone.
Will I ever sell my halkon hunt suit, never its the best in the business in my opinion but of course comes at a price.