I don't own the plus, but I do have a CC and have owned several standard Thunder 380s. The trigger is not bad in either double or single action. The double action trigger pull is about what I'd expect it should be but since I don't have a trigger guage, can't say for sure exactly what it is. As a point of comparison, I also have a PPK/S and the Bersa trigger in double action is far and away better than the Walther. The single action trigger on the PPK is a bit nicer though, but not bad on the Bersa.
Of the two types of guns, I think the Bersa is a far better weapon than the PPK. My PPK is, to be quite honest, a piece of junk. It was bought new and still does not cycle reliably after around 500 rounds through it. If Bersa can build a nice .380 for under $300, then Walther should be able to do it for close to $600.
The Bersa .380s are not the softest shooters around, being a blowback design, but are still comfortable to shoot. They are nothing like a PF9 in snappiness but are also not as soft shooting as a Sig P238. Overall, they are great little guns and are worth every bit of the money it takes to buy one.
Tim