Most likely if you’ve gotten this far, you are not going to dislike it when you see it. In fact you’ll probably fall in love with it even more.
My personal experience, as a family Westy traveler with two kids:
When I picked up the van it had only Koni shocks for suspension upgrades. Driving was a bit unsteady. However, I enjoyed the steering and the vehicle was somehow solid, tight, and actually fun to drive. The first thing I did was upgrade to the larger size up Michelin tires, as many others have done.
Our first trip was from Pennsylvania to Florida. At that time, the kids were 2 and 8. The first drive down was a steep learning curve. We had to learn how to function in this vehicle and understand all of the systems. Plus, it was winterized and we had to learn how to unwinterize it, which turned out to be a cinch. We didn’t like it right away. It took a few weeks for us to truly “get it” at which point it blew our minds how amazing this vehicle was!
The biggest suspension issue we experienced on that trip was shaking when passing or being passed by semis. Also windy conditions were challenging, although never as bad as the old VW vans I’ve driven. We decided to get the Roadmaster active suspension spring helpers. $500 or so seemed a reasonable price. The difference was enormous. The confidence after this upgrade was day and night. At that point, the only thing still happening was a slight vibration from the wind when passing the semis. Not at all a problem.
At some point afterwards, I discovered that I was making a mistake by following the factory recommended 55 psi front tire pressure. As others had recommended, I experimented and settled on 65-70 depending on road quality. This made a significant improvement, enough that I wondered if the other upgrades were needed.
The only area that’s a bit weird is going slow at an angle onto driveways where the AC weight causes a rocking motion, but this has nothing to do with normal driving.
Since those changes, we’ve put about 60k+ miles on the Westy. Some of the trips were non-stop across the country. Not only was handling not a problem, I actually immensely enjoy driving the Westy. It’s kind of like a little big rig with Mercedes engineering. It doesn’t feel like a car at all, but the experience is one of being in an industrial machine. Plus the seats have been great (and we are spoiled by the seats in our Volvos). We just love it! Also, some of these miles have been with hauling a 3500-4000 lb trailer. The trailer actually improves the handling, totally rock solid, although you have to slow down and downshift a lot.
One other controversial note: I did add the GDE tune. There are lots of valid different opinions on this, but it has worked out for us. Power has been improved and so has MPG. We also use a variety of diesel additives (lately have been loving the German Liqui Moly one).