Ive used them about 4 times now, once for a tank and 3 x for filters, no problems at all, in fact the filters I ordered one day, they arrived the next!
Never used them but after seeing this thread I've just looked at their website. Prices seem very competitive, Visitherm heaters, which I swear by, are a lot cheaper than my lfs charges. May order a spare one.
another happy customer here. i have ordered from them 3 times and have always had good service.
Prices are very competitive and most importantly their website actually tells you if something is in stock (cos it really annoys me when you order something online and get a phone call or email saying sorry out of stock !!).