Works great for walking (for me)
For such a small unit, the AM reception is acceptable (AM can require patience at times). The FM reception is OK also. I wear it on my belt. I don't constantly plug and unplug the headphones, so jack wear is not an issue for me. My only issue with this is the low-battery indicator. The indicator does not give one a lead time, one's first indication of a low battery is when the reception degrades or the unit shuts off.
Plug Problems
I liked my 2 SRF-M80V walkmans (After replacing 1). The problem with this walkman is the internal contacts that meet the headphone plugs become loose and the audio is intermitant. You contact Sony and the service is lets say weak. No extra effort to make-do on a problem that I have had with 2 of these radios.
Guess what the service fee after a year is ahhhhhh $45.00. Guess how much a new radio is $49.00. "gee, great". No more.
I am a Sony fan and I loved this radio while it worked for a year or so. The exterior has held up well but, not the interior engineering.
Virtually No Reception
I had to immediately return this walkman to BestBuy because I couldn't get reception for any of the radio stations that I listen to on a regular basis (I tried 5 stations- couldn't get any of them to come in). This walkman is absolutely terrible!!! I can't believe that my walkman from the 1980's had better reception. I ended up buying a Panasonic RF-SW50 today at Target. The sound is incredible and it gets every single radio staion in my area.
Headphone jack becomes loose
I too bought one and had the headphone jack become loose. I bought another thinking I had a faulty one, but now I'm having the same issue with this one. The loose jack causes the reception to go in and out...and finally just out completely. I agreed with the previous opinions on this fatal flaw.
Just what I was looking for
I bought this for my boyfriend for Christmas and he loves it. I read the other comments, but he has no problem with it at all. The armband stays in place and the radio works fine. He changed the earphones, but other than that it is just what he was looking for. I think this is a great product. And he is very happy with it.