It's rare that I give anything on Amazon 5 stars, but I LOVE the WT00Z5-1! So, to give a little background, I already have several WT00Z-1s. The WT00Z5-1 is the Z-wave Plus equivalent of the WT00Z-1. 2Gig/GoControl had seemingly gone dark in their development, as competing vendors rolled out their Z-wave Plus offerings. This was unfortunate, since the GoControl dimmer is better (IMO) than competing products, and the accessory switch has no equivalent from ANY vendor (AFAIK). When I say that this is a unique product, it's because I feel like it is. The WT00Z-1 and WT00Z5-1 can be used with ANY vendors' switches to make 2/3/4/5-way circuits. While other vendors have methods for handling this, they generally involve using the traveler wire and do not allow for per-switch Z-wave events. This item can be associated to relay and dimming switches from any vendor, and are much more flexible than the traveler wire equivalents. Packaging/Build Quality I've attached a photo of the packing and included items. The switch is typical of GoControl/Linear/2Gig's products. They lack the overall robustness of GE/Jasco switches, but I've not had any problems with them over the past 4 years. The switch has a wire pigtail attached, but people have mixed feelings about them. I don't have a problem with it, but you should take the proper precautions when mixing stranded and solid wiring. As an interesting touch, the Decora switch cover that is included does not have any visible screws. This is a huge plus for me, as I've placed all of my switch covers with the snap-on, hidden screw variety. Considering that they aren't cheap, it's a very nice throw-in. Installation/Use Installation is quick an easy with the attached pigtail. Expect to cut the wires to length, as they are much longer than you will need (even in a 4 or 5 gang box). The wires are all very light gauge, but that's to be expected as the switch doesn't really deal with any meaningful load. On that note, the switch housing is shared with other switches in the product line - as such, the switch has heat-sink "ears" that are completely unnecessary in a no-load product. Don't feel bad about discarding them, even in single-gang applications. Z-wave enrollment in HomeSeer was quick and painless. Like all Z-wave Plus products, the enrollment process takes a bit longer, but there were no errors or hiccups. As mentioned above, the included switch plate cover is of the hidden screw/snap-on variety. Though I have plenty of this type of cover, I haven't seen one quite like this one before. The base plate screwing on to the surface of the switch is pretty standard... where it diverges is with the snap-on cover. The covers I'm used to seeing mate with the base plate in such a way that the side profile has a ridge about halfway up the z-axis. However, the side of this cover go completely flush with the wall. It's a cleaner look, in my opinion - I've attached a couple photos to show how it looks. My only negative note is that the "white" of the cover is a tiny bit more blue than the rest of my white Decora covers. It's not a big deal, since you generally won't have multiple covers in close proximity, but it is worth noting for those who may care about it. Conclusion I use WT00Z-1s all over, so I'm really happy that the WT00Z5-1 is now available. I think it's a much easier and powerful option for n-way circuits, while not costing much more than the traveler-based aux switches. I also use these in places where I have no physical wiring tying a switch to a device. For example, I replaced several ceiling fans that were wired in the box for light kit and fan control; the new fan only required a single switch (where the fan speed and lights are now controlled with a remote). I used the open gang WT00Z5-1 in front of it, where the WT00Z5-1 sends on/off events to the LIFX bulb plug-in, and does not actually operate the relay (The HomeSeer app is used for that). These switches really allow you to be much more creative with your automation planning. I highly recommend these to anyone needing n-way circuit control, or any type of scene control.