I've bought a lot of electronics here. Most of the time, the service is better than average. There will always be those employees that seem like they have less knowledge on the items than you.
I've had great experiences where the employee is wandering around checking in on people and happens to see me looking at video games, asks me what kind I like, my budget, and age rating. Shows me several that he recommends. I bought 3 when I only wanted 1. (Not using pressure tactics). The reason I bought 3? Because I saw how much he loved what he was doing here. He loved electronics, was knowledgeable, andthat makes people buy.
If you can't find what you like or need someone knowledgeable on a particular item, go to the greeter and tell them. Its their job to make you buy.
Also, they don't advertise price matching but they've done it for me several times.