Good value for the money
When my small band of value-minded travelers go to conventions I'm put in charge of finding the hotel. While I'm usually wary of non-branded hotels I took a chance on the Pacific Inn. In general, we were pleased with the value for our money.
Check in was quick and painless and I was able to get my room even though I was there 30 minutes before check in time. My key didn't work but I went back to the front desk and got a new one. No great inconvenience there. The room was functional, though it's missing some of the amenities in just about every other place I've stayed: no hair dryer, no iron/ironing board, and no coffee maker. Apparently some rooms have fridges and microwaves, but not mine. They are updating some rooms though, based on the comments here, this seems to be a continuous work in progress.
As for the noise, I wasn't really affected by it. Yes, there are railroad tracks right behind the hotel and the airport is close by and you will hear the noise but they didn't bother me.
The continental breakfast consisted of individually wrapped bagels and danishes, fruit, coffee, and cereal. If that isn't enough for you there's a Jack in the Box next door and a Denny's up the street.
The convention center is about 1.5 miles away. If you don't want to walk you can take the trolley though you will need to change trains. Or you can just drive since convention center parking is $10. I would definitely consider staying here again if I'm going to the convention center.