I have done it to myself once again. Really! When am I going to learn?

No, this little maltzu (maltese/shih tzu) guy is not ours.... yet.
This is my thinking... When we do not have a pet for the most part it's great. No extra clean up, no worries when we take off for a day or a week, no extra costs, but...
for some reason I feel like I am missing something. Something small. Something fluffy.
I know, I know... small dog??? But it seems easier for some reason. This breed is a very low shed dog. Not a yipper or barker like some little dogs. Great with families. Great with kids. No breaking out of the yard and hurting themselves issues. And this one is male and a puppy, so no surprise litters to care for.
A puppy means training, but then the training is all me so the dog that I get is the dog I create. Then again, it's all me....
Only a few weeks left before all my classes are done and then I have the summer home (less my vacation time at the beach of course).
But the fall brings on student teaching.
HELP!!! Please give me some honest feedback!