Here's the problem as I see it. Years ago when the DeWalt saw came out, everyone had to have it. Thousands and thousands were sold. What that means is if a small percentage of them are defective, and we here about it, it makes it look like they are all defective. Well, the same thing is happening with the Excalibur saw. They are now the second most popular saw, which means there are thousands of these saws around the world. In this age where we hear about it as soon as it happens, it's so easy to get discouraged.
A couple of years ago, I decided I needed a new saw. After years and year of heavy use, my DeWalt saw was worn out. Knowing the deficiencies of this saw, I decided to try out the EX 21. Although this saw had many of the same features as the DeWalt and had some other attractive features, I decided to go with another DeWalt 788. Nothing against the Excalibur, I just though since I was so familiar with the DeWalt I would stick with it. And for the most part I am still happy with it (even though I have a new saw now, but thats another story).
So if you are looking for a new saw, go for it. The DeWalt has a 30 day replacement or return policy. If you are looking to get an Excalibur, go with a proven dealer like Seyco in the U.S. or Axminster in the UK.