Seems like you're doing hard and honest work. One thing remains odd to me, the slow communication part. Do you need more people to handle customer relationships ? or was it difficulties in admitting technical issues to them that caused such delays ?

I don't know how I would react, but from a comment I think I'd like being told soon, even if it was a failure (in that case it's not even clear if you were failing or if it was some system in the middle) from a company I paid. I'd be less angry after 3 days with a disappointing news than after a month.

Then it's just me; I don't know how other feel about this. I'd be curious to know though.