I have a Reflexion bunkhouse on order. We too would have liked the second toilet, however such things push the weight past the point of no return for comfortable towing with our F250 diesel truck.
And Grand Design has engineered their Reflexion line not to require a 1 ton dual rear wheel truck for towing. Some of us just don't care to live with duallys on a day to day basis.
Their much more expensive Solitude would be more like most Cardinals in quality, however they don't offer a bunkhouse in it. Grand Design is an upcoming company with over 1000 fivers built in their first 18 mos. in business.