You mentioned the Black and Decker umbrella. I just had a very pleasant experience with B&D. We had purchased a cordless vac from Amazon of that brand and it started slowing down and not holding a charge. So, I called them to find out how to get a battery for it. They told me that the batteries are not a service item and not available. So, I asked the girl whether the buyer should just "trash" their $80 vacuum. She said no, they would replace it. But, that particular one was no longer available and it would be replaced with the newer version. The old one was 12 volt and the new one is 20 volt lithium with a charging base. It is much more powerful. All this at no charge. So, at this point in time, I'm not afraid to buy B&D stuff.
Ray