There are all types of pliers that serve different purposes. A good plier set will be used often. From holding to cutting, these versatile tools perform all kinds of different tasks while wrenching on your motorcycle. As with screwdriver, these types of tools are so common that it is common to overlook the quality. I would bet most people haven't actually used a quality set of pliers. Low quality pliers tend to not open or close smoothly, then jaw teeth don't interface well, and the metal is soft. If this is the type of plier you are used to then you probably aren't impressed by these tools.
When purchasing a plier set, I would suggest sticking to known name brands like Channellock or IRWIN. These guys have been making these types of tools for decades and they really have perfected the details. Below is a list of typical plier types that all serve different purposes.