njheart,
I am so happy that you closely examined all your options and picked the one that meets your needs best. Personally, I think a 2552 is ideal for the two of you given your personal circumstances. You got the slide out after-all, a feature hard to pass up, especially when considering your large dogs.
You will surely have questions about options to consider, so ask away here on this forum. You might also want to ask the PC community for their thoughts, if a 2552 will require a tow vehicle for your particular travel style and considering your dogs.
Congratulations on a great decision. I am sure you'll love your new home on wheels.
Welcome to the PC family.
Blessings,
Ron