I like how powerful this tool truly can be depending upon what data points are being tracked along with other analytics tools in their suite of products/services! It has made my work easier by giving me more control over each individual interaction within an online channel which allows us better understanding where opportunities lie at all times during campaigns across different platforms; mobile apps included!! Not anything really specifically but if they were able add integration options such as Zapier or IFTTT (which would help eliminate manual entry), then we could use those integrations too :) They do offer these services though- just not sure why people wouldn't want them?? If someone was looking into creating new ways to track interactions between users who have already engaged before going back from one platform / screencast session etc., than yes - definitely give some serious thought about trying out reTAGGING.