This has to be one of my favorite breakfast spots in Pittsburgh and I do not come here nearly enough. I think it beats the other locations by a mile in regards to service and size of the establishment. This one is located in Millvale off of the beaten path of your standard popular downtown Pittsburgh locations, but it is worth the trip (and it is actually closer to my house than any of the other ones so it's a win-win for me). There are a lot of tables and it is alwayssss busy, but we've never had to wait more than 20-30 minutes - and if you've been to Pamelas in any other part of town, that's not bad at all.
During my most recent visit with my mom, we were seated immediately. Our service has always been excellent. My mom and I always order the chocolate chip banana hotcakes to split and we both get a different omelette. My favorite is the Tex-Mex and it comes stuffed with delicious chili/chorizo and cheese, plus a heaping scoop of guac on top with the famous lyonnaise potatoes and toast. It is truly a size that could feed a small army and I think its under $10.
Pamela's is a Pittsburgh staple and if you're in town, you must stop in to try it. The hype is for real. Cash only I think at (all) locations. Get the hotcakes to split, too. Thank me later.