I've had numerous Seeland clothing items like jackets and trousers non have been up to standard, there basically one step up from the jack pyke crap you sweat yourself to death in the quality isn't the best either, so the footwear I'd steer clear of judging by there more premium brand Harkila can't get there footwear right, compared to the German brands on boots Meindl, Lowa, Hanwag the Harkila kit either starts leaking or fails much quicker... your basically paying for a name, not quality or performance. Just my opinion.
If your looking for some decent wellies, I'd recommend Aigle Parcours Iso as they have more foot support than a lot of other wellies and there warm enough for winter, and won't break the bank.