Advice on replacement cover

[PaSpaMan]

I see that this must be a new forum. So I may as well be the first to post. I am looking for a new spa cover and have seen many different ones on the internet as well as at my local spa dealer. Has anyone had any experience with the Acculok covers? The website is http://www.acculokhottubcovers.com. The information on the website looks good and it has a 7 year warranty. I am looking to purchase a cover before it turns to winter here in the Northeast, any help would be appreciated.