I tend to board my dogs. I feel bad, having a sitter come only 1-4 times a day. I expect my dogs to have more human interaction than that. And I don't like that there's no one there overnight, not even to check up on them.
So, with that said, Miko (when I didn't have Koji) would either get boarded or sent to my folks house. In May, Koji will be boarded, and Miko will be sent to my folks house.
I am VERY picky about my boarding and how they work. I will go to one I think is good, and ask for a tour of the facilities, what a typical day is like, is there anyone there overnight, how do they handle emergencies, etc. The place I'd board Miko in, they got huge kennels, with full length doors that are basically room. And it's quieter that way. They nickel and dimed me for everything, so I wanted to find a new place. that place was great, but when it was costing me about $75/day, it's a bit much. I don't think I should have to pay them to feed my dog his own food either.
The above paragraph, is also why I won't board my dogs, when they're in cages (like at vets, PetCo/PetSmart hotel, etc). Not enough room to walk around, no playing, etc.
When we got Koji, I went looking for a boarding facility that has daycare. Koji has a lot of energy. Him being in a kennel all day, everyday, wouldn't be good. So, we went to about 6 different places. It's amazing how many of them smelled like urine and feces. Anyhow, the place we found, the people are great and very attentive. They get daycare for about 11 hours, then sleep in 4x6 kennels. I am still bummed no one is on-site, but I am told they check up on the dogs throughout the night via webcam.
I kenneled Koji and Miko there last year. Miko lost a lot of weight from being so active, and they didn't feed him more food. BIG problem in my eyes, I called, was put on the owner immediately. She apologized profusely and said she'd refund his portion of the stay. They tend to watch their weight because they are so active.
Anyhow. The people at the kennel make up for the lack of overnight supervision and purdy rooms that the other place has. They also don't nickel and dime me. And lastly, because the owner knows is now, and absolutely LOVES Koji, she asked if we'd allow her to take him home at night with her (instead of him being kenneled overnight). Ohmigod. Hello! How great is that? And that is why I love the place.
Whatever you choose, I suggest you do your homework. If you board, go to the place, check it out, ask for a tour, talk about your concerns, if you feel great, maybe do a test stayover. If you don't feel good about it, don't go there. Recommendations are best, but I know everyone is different about how they like their dogs to be boarded. I've heard great things about places I would never board my dog at.
If you do a pet sitter, definitely use them a handful of times before you go on your trip so you can get a better feel about if you like them or not.
i.e. I had a dog walker come twice a week during the week. He left me a message late Sunday night, to tell me he was no longer going to walk my dog (for his Mon/Wed walks). He also gave unsolicited advice, like NOT crating my dog all day (even though we told him how much of a chewer Koji is). He gave that same advice to our neighbors, who took it, adn then had their dog destroy their couch, carpet, and pillows. His service was great, but there were things that I don't like, and he'll probably never get my service again.
Good luck.