So you think it's pretty familiar to what you remember?
Oh yeah totally!
What I'm finding though is, I've completely changed as a player, and I love the sound of it, but I feel guilty now for having asked for this model, because I realize now I've become so used to the feel of Plexis, with and without overdrive pedals, that I would never use this kind of amp now! I still love the frequency response of the amp, and I can absolutely get the tone I used to get when I was younger playing on my friends' amps, but the responsiveness is nothing like what I go for now. At some point I read a Paul Gilbert interview where he talked about using just a single channel amp for everything, with just his volume (and maybe tone knob?) to vary the tones. Since then I went on this journey for more and more dynamic tone, while still being able to play high gain stuff and sound good, and ever since I got the Axe-FX III, that allowed me the freedom to do that in the most instensive way. Which led me finally to discover that the amps that feel the most right to me these days are the 6CA7 and the SLP (in Treble mode) Plexis, often with the OC11, 3-knob Tube Driver, or BluesBreaker in front.
This model is totally what I remember, and what I loved, but it made me realize how very much I've changed over time. I realize that the kind of grain in that tone, the weight and what I call "shimmer" in the gain of a 5150 is something I love so much, that I've found ways to create more dynamic versions of it over time, using amps that are nothing like a 5150! I was
not a dynamic player back then. I sounded more like Glenn Tipton on the Painkiller album, but now I'm all over the place. When I heard A New Day Yesterday by Joe Bonamassa when it first came out, it hit me like a ton of bricks. I don't really care so much about his music overall, but some of his playing really hit me, and I started craving just more dynamic, more nuanced tones, but still with this love of the grain and frequency response of a 5150, which is just a weird combination. Like the sound of the most wonderful Plexi, but put through a Boogie 4x12 or something, just weighty.
So this model kind of put me in a contemplative tailspin. I feel like it's awesome and great, and warm but aggressive, but, like the Lead Channel of the 5150, not as responsive as what I've become accustomed to and what I always reach for when I'm playing.
This change I've gone through has also made me intolerable with my volume and tone knobs; I never stop with them. So if I plug into an amp where I can't really perceive much difference between guitar control panel settings, I feel like I'm not saying what I want to say.
And not to say that where I've gone as a player is right, or better, or anything like that. Staring this new model in the face made realize just how much I've changed over time, and how completely differently I felt back then.
I get in a good mood just reading this! 
