Wow, there isn't half a lot of bollocks being talked here..
Not pet dogs? All the KC reg show bred Beagles are pet dogs, obviously avoid puppy farmers but otherwise, they're a good pet dog.
They are the smallest of our scent hounds, and bred to usually be followed on foot, not on horseback (though traditionally, by fairly fit young men running after them it has to be said).
Many of the problems people are describing are not specific to Beagles at all but are pretty common problems that arise as a result of people not understanding scent hound temperament and breed traits or plain not understanding dog behaviour at all.
'Creeping' which I have just seen mentioned is a dog thing, not a Beagle thing, and it is something dogs may do if they fear the reaction of their owner - that fear may be learned through experience with that owner, or with a previous owner or it may not be justified at all but may be a result of poor genetics. It is an appeasement behaviour designed to avoid a confrontation or aggressive response.
It is frequently mistaken for meaning 'my dog knows she's done wrong' but this is incorrect - it simply means they've added up owner behaviour + context and are now feeling the need to appease. I have seen dogs do this who did nothing wrong at all and this has been tested fairly thoroughly by canine ethologists and scientists.. its bunkum.
Scenthounds and hounds in general are often described as stubborn, bloody minded, ignorant, stupid even - they are none of these things.
They are mostly bred to be independent, to work at some distance or even great distance from a human, to work with groups of other hounds or to work with a hawk even... and very strongly bred to NOT quit hunting if distracted, to not be easy to distract from the sight or scent of game.
To label them stupid and stubborn for doing the job they were bred for hundreds of years to do... is pretty stupid and bloody ignorant don't you think?
They are often clever, almost always determined, generally food motivated (for the scent hounds anyway, less so the sighthounds) and its easy to see what will motivate these dogs to work with you - the opportunity to chase, to scent, to track.
To be a hound owner you do need patience, they do not do things the instant you demand it - you learn not to demand, you learn to suggest, you build a strooooooooong history of reinforcement for both listening and compliance, and a strong positive relationship, you employ sensible management (don't let them off in 100 acres of ground riddled with rabbit, hare and deer scent dummy!) and you train.
If you are the person who can show your dog where the good scents are, the trails that lead to something amazing (food, a hidden favourite special toy), you become the key to getting to do the thing they love to do... and they'll be inclined to listen to you.
Stick one on a lead and try to train it like its a collie, expecting collie like responses and a inbuilt desire to follow your instructions and yes, you will be disappointed and hate owning a scenthound.
I don't really think any dog is low maintanance - for me, I'd rather work to earn their co-operation and respect when it comes to general obedience, but have an easy time with them getting on with other people and dogs, than have an easily obedient dog that is much less easy going socially.
Oh and for the people who keep suggesting lurchers as low maintenance breeds, please stop it.
A deerhound/greyhound/teeny splash of collie MIGHT be easy going... a bedlington whippet collie almost certainly won't be. A bull x greyhound x malinois (yes v popular now!) will be a rocket powered murder machine of a dog. There are as many lurcher variants as you've had hot dinners and some of them will be an absolutely NIGHTMARE for some people and some will be perfection in dog form!