I like how easy it is to use for both my clients as well myself! The support team are great too - always willing & able help with any issues we have at anytime of day or night (even weekends!). Nothing really in particular about this product but more just everything from start up process through end user experience has been very good so far!! We can now easily manage our proposals via email rather than having them all stuck together into one large file which was quite time consuming before using tboss Proposal Manager system.