I have a TS-50 and use it mobile. It is a good mobile radio but only a fair base radio. The receiver can overload a bit easier than many larger radios. Dr. Ulrich Rhode wrote an article about this some years ago. It turns out that the switching diodes impacted the performance more than one might have expected.
The TS-50 was designed to be small and simple to use on the road. For what it is, it's a nice radio.