I crushed my left index finger while de-priming. Almost lost the nail and got blood all over my press. That's as serious as it gets for my reloading injuries.
But seriously:
financial: you probably won't balance out with savings if you really get into reloading. Sure, you'll save boatloads making .45 ACP etc, but you'll spend it by shooting more, and getting interested in new calibers, guns, etc. For example: I'd never even held a .32 S&W Long handgun, but got interested in the cartridge, bought dies, brass, bullets, and had loaded rounds---all before I ever bought a pistol to shoot them.
safety: as others have said, if reloading was patently dangerous, the lawyers would be all over it, and insurance companies wouldn't allow the gear in a residential property. Sure, people hurt themselves (see my finger drama above). People hurt themselves playing tennis, too. If you are dedicated to safety, you will have no problems.
time: you'll spend a lot of time reloading. Heck, I'm in my shop every day, if I'm lucky. But---I'm home. Wifey knows where I am, and we have a futon where she can hang out and read while I'm working. Our daughter likes to 'help' me in the shop, and that's just awesome. Also, if you're reloading, you ain't drinking or getting into trouble. Heck, you're not even watching TV.
intangibles: most people in our society today don't make anything. They work in offices all day, and watch TV all night. They pay strangers to rotate their tires. Reloaders are by definition 'old school'. We use our hands and our wits in a fairly arcane pursuit: personal manufacture of ammunition. In my personal experience, reloading has given me more confidence to tackle other projects, and spurred interest in related fields: metallurgy, ballistics, smithing, etc.
In short, go for it. This is an awesome hobby.