It was probably mainly due to laziness that it took me so long to update, but I'm very happy with the results. Things look and feel a lot smoother. Since it set a lot of things to default settings, I'm still in the process of re-customizing my layout. Also, it removed some of my shortcut icons on the top panel, so I'll have to look into re-creating those (I had even found/edited a custom icon for MLCad). Oh well, there's always a few things lost in major updates, and this WAS a major update.
The whole thing took like 30-45 minutes just to download the necessary files and then another hour to hour and a half to install. But overall, I definately feel it was worth it. I was happy to see that I didn't have to manually compile and install the sound drivers as I used to have to do in Hardy after every update (another reason I wasn't all that gung-ho on updates). However, I did hit a minor snafu when I discovered flash videos (e.g. youtube) weren't playing sound (although other sounds would play). This turned out to be pretty easy to fix, and things were flowing smoothly in pretty short order.
All in all, I'm continually happy with my choice of Ubuntu (and thus Linux) over Windows. It runs smoother, I don't have to bother with anti-virus software as it's already built in (plus, Ubuntu is far more secure than Windows will ever hope to be). Open Source: the way to better computing!
). Still as good as MLCad works, I can't complain too much. I do wonder though, as open source as the whole LDRAW community seems to be, why the software developers don't follow suit and release the source code for programs.