- You get a fairly substantial rebate if you use Redfin.
- You're not locked into a contract. Most agents will make you sign an exclusive contract with them, and if you end up not liking their work you're in a messy situation.
- Since Redfin agents are paid for their work and not commission, they're not just trying to get you to buy the most expensive property or pressuring you to buy ASAP so they can collect their money.
- Since you're not under contract with them (other than for the houses they show you), they won't be upset if you decided to pop into an open house.
The first reason is true not matter what agent you choose. The other three points might not come up if you get a good agent, but it's hard to get a good agent, and these are all pretty common problems. If you know someone who you're certain is a good agent, then it might be worth going with them (even considering the financial hit from the first point). If you don't, Redfin would probably be a better bet.