What made you choose that model and what other models did you consider? The reason I ask is because I too have been considering picking up a second motorcycle that would be easier to handle off road and also be a good starter bike for my wife to learn on.
John: I'll take a shot at answering why I went with the TW200. I was looking for something easy to ride, low seat height, excellent MPG and fun. I didn't want fuel injection or any type of radiator as I wanted it to be ultra-reliable out in the middle of no where. Was actually really considering the Honda Trail 90 until I discovered the TW200 and read some articles. The TW200 had it all. It was way more fun on the pavement than I expected and a blast exploring trails. I re-jetted and modified the air box and muffler looking for a little more performance. Raised the fender because the low fender packed with mud. Put 10,000 awesome miles on it and it never let me down. TW's are just fun, fun, fun little bikes and I'll probably have another one in my future when I reach the age I need to really slow down, or my Grandson is ready to move up from the CT50 I plan on buying him.
That said, if I was looking again and had the wife in mind I might strongly consider the Yamaha XT225 instead of the TW200. Their motors are almost identical. The reason for that primarily has to do with suspension and me now being a more aggressive rider. The TW200 with the very heavy back tire and rim is awesome up to about a medium aggressive trail. After that the back shock just can't keep up with the un-sprung weight. You can just forget it if you get into whoops.
The XT has much more availability of modifying the suspension and options for tires. Big plus the Xt225's have a 6 speed tranny the TW200 and newer XT250's have 5 speed.
The TW has 8/10 of an inch lower set height so that might be a factor.
DR350 36 (nose bleed time)
For a new rider, or an older (age) rider wanting to explore the back country at a comfortable leisurely pace the TW wins. For someone wanting an lightweight woods bike they can modify to make a better woods bike yet be ultra reliable (no KTM's) and super on fuel, the XT is a stronger consideration.
But if seat height is not an issue and someone is looking for a great licensed dirt bike - the DR350 I had was so much fun and way better than either of the Yamaha's. Only reason I sold it was once I got the Wee, the DR just sat un-ridden. But there are days I miss both the TW and the DR.
Funny but just writing this novel (sorry for the length) I'm actually missing the TW more. It always put a huge smile on my face.......well, except the two times I had to jump on the interstate for a few miles.
Every bike is a compromise somewhere. That's why owning different ones at different times isn't such a bad thing!
Ride what makes you giggle.