An issue that I was having is that LV did not have any releases on hex. So you had to pull from github and pray you got a working version. This was recently fixed though, so you should always try pulling for hex if you are able.

My last "problem" is less of a problem with LV and more of a contraint of my system. I cannot guarantee that everyone using this application will have network access 100% of the time. So for a certain subset of my users, LV would not be ideal.