I agree with the above comments. I also can really relate to your situation as I had been primarily using an API climber myself on most outings but picked up and Ameristep Doghouse last summer and am very happy with some of the added advantages that it can provide.

Since then I gave the blind to one of the local clubs as a donation but picked up a 2003 model Penthouse and soon another 2003 model Doghouse TSC.

You should have more freedom of movement inside the blind provided you do not have all four windows/portholes/doors open at the same time. If you do then the animals will be able to see movement inside of the blind.