Yes, two is definitely better

The only drawback I can see is with flying. If you are flying alone, then it would be almost impossible to get "tickets" for two dogs, they only allow 2 dogs per flight (most airlines), for FAA regulations, and one dog per person, also one dog per crate. A lot of airlines have stopped in-cabin animal flights now and want them to be in the baggage area

So if you're travelling with someone,it might be do-able, but otherwise might be a juggling act. I dunno, maybe call a few airlines and see what their policies are, I'm just going by what Delta told me a couple years ago when we flew with Starr.
But YES, you will love having two. Twice the work, but quadruple the fun