I recently bought both Rock packs from Chop Tones so I thought I'd share my experience. I listened to the video clips they provide but had some additional questions, like which amps were modeled as the videos don't always make that clear, and which speakers and cabs are modeled. I was told to listen to the videos! I emailed again and this time they ignored me. Nevertheless, I decided to take a punt and tried to buy the packs.The website wasn't working well and it was almost 24 hours later before I was able to complete the order after a great deal of confusion. My experience of dealing with Chop Tones as a company was akin to dealing with the Keystone Cops! Anyway, what of the tones? Well, it's a very mixed bag if I'm honest so here are some broad comments on what I found, though I appreciate that tonal preferences can be very subjective. The presets they sell you rely very heavily on the IR options that come with them as there are very few blocks enabled beyond Amp, Cab, Reverb and PEQ2 that is set to 'Notch'. Every preset in 'Volume 1' uses a Mesa 4X12 with V30 speakers so the only difference seems to be the microphone used to record. 'Volume 2' offers more variety with a ToneKing Imerial 1X12 with a Creamback; a Friedman 4X12 with G12M speakers and a final option that was a combination of a Mesa 4X12 and a Friedman 4X12, both loaded with V30s. In general, I found every preset to be too dark and sounding almost like a blanket was over the speaker. The tones certainly weren't as impressive as the ones in the videos. They advise you to simply change level and gain settings for your perfect tone but the reality is that it needs a lot more work than that! I started at that point but then I had largely remove all the bottom end they'd added in the Cab block. I also then had to start playing around with the EQ options so that the presets now have far more blocks enabled. I also had to tweak the reverb block as they seem to like a very large room in their presets and it was just too boomy on many of the presets. In some cases I couldn't rid the tones of the hollow, dark sound and I wonder if it has something to do with the PEQ2 'Notch' setting they used because that appeared on every single preset. I confess that I really don't understand EQ so I have no idea what the difference is between Notch, Highpass or Highshelf etc. As a result, I copied EQ blocks from other presets I had that used the same or similar amp models and that seemed to improve matters a lot. I also boosted the Master control on the amp to increase saturation as it was set low on every preset and this helped to remove the hollowness. Finally, I started to swap around the IRs as this is what disappointed me most about the packs. If you want to do a convincing JCM800 patch, surely you want to model an IR on a Marshall cabinet. Using a Mesa just seemed wrong. I found most success with the IR that was a combination of the Mesa 4X12 and Friedman 4X12 and V30 speakers so that is now on most of the presets. All of that took me a good part of yesterday and I do have some good tones now. I'm certainly happier now that all of the adjustments have been made but overall I wouldn't recommend parting with your hard earned cash for them. My impression is that you can get similarly good tones yourself through experimentation and following some of the YouTube tutorials that are around. There are increasingly some great presets being offered on this forum so I urge people to look in these places first. This experience has also led me to reflect on buying IRs, which is essentially what I've done. Yes, they can be good and they can be an improvement on the ones that come with your AmpliFire but it strikes me that perhaps a lot of the time, you end up with something different and not massively better. My favoured IR from Chop Tones is good but with the right EQ settings and a bit more knowledge than I have, I suspect you could get really close to the same quality of tone with what comes stock. The only other pack I've laid out cash for is the one from Singtall and if I was going to recommend just one of these options, I'd strongly suggest you invest in the Singtall pack instead of Chop Tones. You get way more options for your money and they require a hell of a lot less work to get you the tones you want. If you really want to use custom IRs (the 'Singtall warm' IR in his pack is excellent) then there are a lot of free options out there for you to experiment with. Other people may have bought the Chiop Tones packs and love them straight out of the box and if you do, I'm really pleased for you. This is only my experience so take from it what you will.