Since no one else has replied it seems not! Personally I have avoided it and gone for re rendering as I've never been convinced after all papering over the cracks inside is one thing but outside? Depends on how long you intend to stay in the house and how bad it is but certainly worth talking to a good local builder as they won't be on commission and should tell you the best way of sorting your issue, then you can compare costs etc. if you want to look into this.