Yeah those Studio Mix Packs are great. The Modern ones have a cool feel and sound great, the vintage ones have an interesting sound for dirtier blues or metal. I didn't like the v3 ones or really anything I bought outside of the Studio Mixes yet. The Eleven Rack cabinets are still better than some of those, they get some great harmonics and things and will never be obsolete. You have all the best options now that will keep you busy for a long while enjoying your Eleven Rack.