The interface of this program, it has very easy to navigate through all options available in order to achieve your tasks successfully! Also I really like that you can edit pictures without any additional programs (e.g., Photoshop). You should try out also other functions such as "3D surface plot". Sometimes there are some minor problems which don't affect me too much but if they were more serious then maybe one could complain about them since we payed so expensively after buying spip from our University's IT shop :) But overall everything works well with no major inconveniences while using SpiP Software;-) Hope u have had similar experiences when working under windows environment? It was not something bad but sometimes certain features didn´t work properly e. g.: opening files via drag&drop etc... In my case i worked mostly only by clicking buttons instead dragging & dropping data into file names/paths because otherwise nothing would open up correctly :.