That is great news! I have been trying to get the Plus to work with my LX200GPS which is fork mounted. Is your scope fork or equatorial mounted? If it is fork mounted are there any particular settings you found needed to make it work? The connections are the same as what you did except no guider attached. Not using anything like Stella, etc. just the Plus and the ASI app on an iPad. I selected each of the Meade LX200 mounts in the app but none fully worked. Prior to buying the Plus I have used Stella and Skysafari with success but bought the Plus to integrate everything into one app. No success in using the Plus for Polar Align so I need to first use the scope Autostar handbox to PA. Once PA is done I can use the Plus for goto and plate solve. Wish I could do a PA with the Plus, would make life a lot easier and also meet my expectations of the Plus.
Have you tried using only the Plus without Stella and Skysafari? If so, how did it work?