The ease of use for my team is by far one if not THE best thing I like about this product! There isn't much that we dislike as it has been very easy so get in touch with them early because they are amazing people who really care how their products can help you succeed!! If there was anything at all then maybe more support around specific issues but other than those things everything looks great.
They have helped us streamline many internal practices including expense reporting which saves time & money while providing better control over what gets submitted vs rejected/ignored etc..