I'm not an owner of the Nomad Factory Blue Tubes Effects Pack, but have used it at the studio where I work, as we've got it on all of our systems there, which are a bunch since we have a number of rooms on site. Our A room consists of Pro Tools HD and a MacPro desktop computer with 10 GB of RAM and dual 2.66 Ghz Intel Xeon processors, so it's suffice it to say we never have any issues running software and plug-ins within this set up. This bundle is definitely marketed to home studio owners, so I would think that most users at home would be able to handle the plug-ins as far as performance is concerned.
If you're looking for some bang for your buck when it comes to a bundle of various effects plug-ins for your DAW, the Nomad Factory Blue Tubes Effects Pack absolutely should be in the running. You aren't going to find many plug-in bundles in general for this price, let alone one with a good amount of versatility and an overall impressive sound quality. The plug-ins should stand up to most others of it's kind and it's definitely awesome to have all these different effects processors in one place. This BT Effects Pack is perfect for the home studio on a budget but is also great for professionals looking to beef up their sound palette in the way of some extra plug-ins...