We used Carson Dunlop for an inspector on our home. While we felt that the inspector was knowledgable, we found that she missed several things of importance.
First, she refused to go on the roof because she claimed that house was too tall. It's a two story home with two accessible areas to access the roof. We aren't the only two story home in the city, so I was confused as to why she didn't want to do this. If she had done this, she may have found that our gutters were not sloped properly and kept water pooled. We had to find this out the day after we took possession and through subsequent visits by roof repair companies.
Second, there was efflorescence on the garage wall that she missed completely. Yes, there were things in the garage that we in the garage and it made it difficult to see a lot of the goings on in the garage, but in retrospect, like the roof, I felt that the effort wasn't made. If she made some effort, she would have see it in the front corner of the garage. While it wouldn't have changed our mind about the home, it would have educated us a bit more about the house
I can go on with other items she missed, but won't. My point is that there are a lot of better inspection companies out there. We used Carson Dunlop on the recommendation of our realtor, but unfortunately we we won't be recommending them to anyone we know.