I've owned it for about 8 years & it has never been out of my house. It is in like new condition & everything functions on it.
People have called the Session 500 the "Cadillac of steel guitar amps", and I would have to agree!!!
I'm pretty sure that they're darn near bullet-proof, if you crank them up all the way you could probably tear down a house (or at least damage your hearing) and you could probably use one for a wrecking ball Monday-Friday during the day and gig with it Friday & Saturday night 
I am looking for $350 for it. I will deliver it upto 120 miles from Wichita, KS. I can bring it to the KSGA show in Baxter Springs. I can also ship it, but it would be a pain and the buyer would have to pay the cost...which would be substantial.
I will post pictures of it sometime on Thursday, as I have to retrieve it from my "Top Secret" tone lab at an "undisclosed location". HaHaHa!!!
You can PM me or email me or respond to the post.
Casey