The Sony Sports Walkman units have a more rugged plastic case and handle dropping better than the average small radio. I've dropped 'em onto concrete floors a few times and they have been scuffed but undamaged. To be fair, I have dropped my Sangean radio once or twice - though not as hard. Like onto the tile floor from two or three feet up. No damage done. But, I wouldn't want to test that with a much harder drop - not at $50 a pop!!
I've done a bit of dxing with my Sangean Dt-210 and the DT-300VW and both do well as portables go. If you're in a setting where there are no overwhelmingly strong FM signals, they'll pull in just about everything that your car stereo can. I live about 20 mi west of Philadelphia and I can get Magic 93 from Wilkes-Barre (150 miles North) on both units. The Walkman and the S10 radios cannot pull the signal out from WXTU 92.5.
However, if you get too close to a really strong FM stick, the Sangeans will overload just as any other personal sized radio will. The DT-300VW seems to limit this issue better - and both do a bit better than any of my Walkman models. They'll both pull in AM signals very well - amazingly so for a little radio.
On the TV side, I can pick up signals from really far off!! Farther than standard FM signals travel. It's a lot of fun to travel with these.