Hello Wrongway and welcome. I am just across the water from you so its good to know that there are others nearby. I too have been running , and still run, WD on a dedicated PC, in actual fact run on Fusion inside my mac. Great program, but very high maintenance in view of all the data it can supply. For those that need such things, especially for the elegant websites out there then it is brilliant.
However, if you want straightforward details about the weather for your flying then you will find the Cat is hard to beat. Simple and clean interface, lots of other things too like uploading to a website, downloading charts, expandable graphics. I would HIGHLY recommend using it. If you want to chat some more PM me and I will pass along my phone number. you are also more than welcome to come and see my station so you can compare side by side.
Choosing the Cat though will not be a mistake.
Best wishes
Mike