The material is surprisingly lightweight. I was able to install it without problems on my iPad and my PC. However the software must be downloaded and follows a long process from the manufacturer's website and also several validation codes to input. We would have liked a DVD with the included software. All the more so on the iPad (version 1), I have a constant background noise (such as an electronic white noise) with igrandpiano and isampler, whereas with the software that I already had like Garageband the keyboard works perfectly! Finally you have to download on iTunes versions "free" software, but these versions do not include all the instruments of the "pay" version, but more instruments than the version "free". As the purchaser of the hardware I thought we would at least be on par with the buyers of the pay version! In the end, this is a great purchase to connect directly to an iPad for training or enter tunes on the go (train, plane, etc.). Its small size and light weight make it ideal for a nice price.
