I bought this printer to replace a similar HP printer (LaserJet 2100M) whose paper transport had become unreliable. My experience with this one has been good and generally consistent with the majority of other reviews here. Based on what I read, I was prepared for a noisy device, but I have been pleasantly surprised. The printer is indeed noisy when initially powered on, but that lasts about 10 seconds, after which the noise level decreases to a low whirr for another 20-30 seconds, followed by complete silence until it is used. The noise level naturally increases when it is actively printing, but the level seems no worse that that of any other home printers I've used that print at the same speed. Some reviewers report having to turn on Quiet Mode, which reduces printing speed. I didn't find that necessary; the default behavior (Quiet Mode off) was fine. Of course, some people are more sensitive to noise than others, and the environment in which the printer is being used is a factor, too.
The physical setup and installation instructions are comprehensive and flawless. I especially like the animations showing how to remove hidden pieces of packing material, which I might not otherwise have gotten right. The configuration process is also very clear (I'm using the network interface, not USB) and worked without a hitch. Well done, HP.
If you plan to use this printer for straight-through printing, be aware that the paper comes straight out of the back, meaning that you must leave sufficient space behind it. To activate th straight-through paper path you simply open a door at the rear within a larger panel that also opens (for clearing jams). It's important to get this right, and while the documentation is explicit, the warning is easy to overlook, and it's easy to make a mistake in practice. Finally, there is no bin to catch the paper coming out the back, so you have to make other provisions. Of course, none of this is relevant for the normal printing path, which deposits the paper in the main output bin on top.
Overall, a very satisfactory printer for my home office.
Get more detail about HP Laserjet P2055D, Up To 35 Ppm (LETTER)/30 Ppm (A4/), 600 Mhz Processing Speed.