One if the partner you are considering has experience in real estate i would definately advise getting into the partnership. But on the other side of that me personally am only using partners when i absolutely need them and it definately wont be a partner that i go in on every deal with. I will only use a partner on deals that i need more money to close on. And when you do partner up on deals with people i have heard on podcast and from CPA'S that you will want to create a different business entity LLC with every new partner that you team up with. For tax reasons as well as making sure your assets are protected.
If you can get into real estate on your own and you trust your judgment then by all means go it alone but if the partner you are considering has much more experience than you i would definately say go with the partner just to help spread the risk from yourself and plus having more money to play with is never a bad thing!!!!
hope this helps