I had a Squier Strat, played it for a year. I decided to get a Gibson SG. I had played many guitars at different stores, and I like the SG. THEN, I decided one more test. I took a strap to the store and hung the SG around my neck, and played it standing up. WHOA!
I am SO GLAD I did that! You couldn't give me a Gibson SG now. I immediately bought a 335 instead. I got a great deal on a brand new one at Guitar Trader. The 335 sounds and feels fantastic, it is beautiful, and I love it. The SG is so neck heavy, honestly I don't know how they sell ANY.
BTW the difference between the Squier Strat and the Gibson ES335 is night and day, really. You'll know, when you get the 335, what I mean.
As previously warned, the size of the 335; well, it is rather large. A 339 is a viable alternative, it is less expensive, BUT, I did not do the "hang" test with the 339.
I say GO FOR it old man...go for it!