Are Freenet Electrical OK to buy from?

I've just done a price comparison using Martin's Megashopbot on an electrical appliance I'd like to buy. Its RRP is £300 but Freenet Electrical are offering it for £200. It would be a huge saving but I'm nervous about buying online from a company I'm not familiar with and -- ironically -- the size of the saving makes me nervous!

Pricerunner, who list the item for Freenet, indicate that Freenet is "customer certified" and has a 4.8 out of 5.0 average rating given by 500 customers who have actually bought something from them over the last 6 months.

That sounds good, but is it OK? Sorry to be such a wuss but I'm torn between the temptation of the saving and nervousness born of horror stories of internet shopping! Are Freenet OK? Can I take the Pricerunner assessment at face value?

I'd be really grateful for any advice!