I have both the Lionel’s Legacy Crescent Limited and MTH's Queen & Crescent Limited Ps-4 with Protosounds 3. The Crescent Limited is one of my favorite passenger trains. I just purchased MTH’s model last week and I like both manufactures models of this engine. I run both at the same time and each has their own good features.
I like the quillable whistle and sound quality of Lionel’s Crescent Limited. The whistle smoke effect is very nice feature as well. Yes, the crew talk is the generic crew talk that Lionel has used on many of it’s Legacy engines and not right for the Crescent Limited. In my opinion MTH sound quality with Protosounds 3 is good, but not as good as Legacy. MTH's "quillable" whistle is really a second whistle...and not quillable like Lionel's.
I also found an alternate horn in DCS menu on MTH’s Queen & Crescent Limited which is nice additional sound feature. I was on the fence weather to buy MTH’s model but I am glad I did. I have MTH’s Crescent Limited with Protosound 2, so I was not interested in getting the passenger set. However, Protosound 3 sound quality is better than Protosounds 2 model. In addition, I now look forward to double heading my Protosounds 2 and Protosounds 3 engines together. Everyone has their own opinion, but I think Lionel’s and MTH’s models are both nice engines. Here are a few pictures on my new Queen & Crescent Limited. Ken