Re: V2 fender mustang 3
Given sound quality, simple interface and sheer tonal performance, I strongly believe that the Boss Katana 100 is a better value than even an older v2 Mustang III, especially moving forward.
Of course, that's just my personal opinion. Having recently acquired a KTN-100 and being totally blown away like so many others (I've played all of the Mustangs, too), I'm probably a bit biased.
If you're dead-set on getting a Fender, the last-gen Mustang III v2 is a really great sounding and highly flexible amp. In fact, many hardcore Fender fans still prefer the last-gen Mustang III's over the new Mustang GT offerings.
You should reach out to user
Lewguitar here on the forums. He's a big fan of the Mustang III and can probably give you some insights.
You should also check out the user channel for "
intheblues" on Youtube. He's a long-time Mustang III fan, but got to borrow a friends Katana and made a few videos about it (HINT: He loves his Mustang, but he was blown away with the Katana once he spent some time with it!)
If I remember correctly, he also did a comparison between his III and a new Mustang GT. It's definitely worth a watch!