We owned the Unity MB up until last fall. Did two month long trips. We have a ratty Australian Shepherd rather than a Schnauzer but in all other aspects (probably) equal!
Crabby Mike's comments are all spot on...
As for us...
Loved it!!!! Cannot beat the LTV product line. There are several very nice used MBs available around the country. They tend to be very well cared for and I would not hesitate to buy a used one and save many thousands of dollars. Or order one and wait 6-9 months! These bad boys are very popular and they only make 600 each year (compared to multiple 1000s of all other brands). We decided early on that we are not going to pull another vehicle. The Unity is very maneuverable and can be parked almost anyplace you can park a large pickup truck. Easy to pack up and go when you want to and plenty large enough inside for long trips. Driving and handling are a dream.
We sold ours in October as we decided to go with the new Wonder FTB. Liked the MB but like the room and openness in the Wonder better. Twin beds, or push together queen does not bother us. Actually like the Ford Transit chassis better: easier to get service all over the country, less expensive, better performance (we felt) and we are Ford people. 2019 Mercedes Sprinter will have many of the features that the Ford already has if you decide to wait. One of our criteria for switching to the Wonder was the performance had to be as good or better than the Mercedes. It is better. We drove the Wonder MB model (which we did not like) before ordering the FTB.
We are off to Alaska for 80 days or so this coming summer in our new Wonder. We loved the Unity MB and we know we are going to love the new FTB as much or more.
Another poster suggested going to the sprinter forum dedicated to the Unity. Spot on. Best site without a doubt if you are contemplating or an owner of one of these. Introduce yourself there and read on. Tons of info and if you can't get a question answered there it doesn't have an answer! Here's the precise link:
Again, you cannot go wrong with an LTV. If this is your first rig pay attention to posts by Scarecrow in the Unity forum. He had never owned any sort of rig before and bought the MB. His posts detail his experiences with researching, ordering, waiting and then driving his for a bit more than a year. He has no shortage of words!