I managed to get two 100ft strands and just finished getting them up and running yesterday. The app installation process and setup was super easy. I installed each strand one at a time and the app automatically set them up in a group. Alexa integration was very easy. The lights simply put look incredible, and are very bright. I have them set at 40% at night which lights up the entire side of my house.
The Govee app needs some work. I tried setting up a schedule in the app which wouldn't work. Also, when I select the lighting group (which combines both strands) and pick a preinstalled pattern like Valentines Day, the light colors change to Valentines Day colors but just stay at static colors. I have to select each strand individually and apply the lighting effects to each strand in order for the lights to change colors and brightness according to the selected pattern/effect. I can do this in Alexa Routines however, so it works but this is a quirk. Routines however in Alexa work very well, and once I did the Alexa pairing, the controls work better than using the app alone. I have found that even though Alexa allows you to set up a routine that is supposed to set the lighting plan as well as the brightness at the same time that the brightness doesn't change. I had to set two Alexa Routines - one to change the pattern to solid soft white at 10pm for night lights, and a second Routine at 10:01pm to change the brightness to 10% (so I don't bother my neighbors at night).
I want to set up my lights after 10pm using segmenting so that only certain lights would be on, but I haven't figured out a way yet to do that and have it work with Alexa.
It would be helpful if there was documentation on how to set up plans and Alexa integrations. You have to just play around to see what works. Also, I would say Govee should have molded tabs with screw holes into the light bases to make it easier to screw them up if desired instead of just relying on the tape. The tape is excellent 3m tape, but it isn't going to work in all situations, and when my feet are 12ft up on a ladder in the tallest eve on my house putting these up, I don't want to be back up there again in case tape fails. I screwed each light up of the two 100ft strands individually using led clips, but molded tabs with screw holes in the bases would have greatly simplified this job. Also, I had to contact support to verify that the two strands needed to be installed in the same direction, i.e. control/lights, control/lights, or lights/control, lights/control in order for patterns to work correctly. Their documentation does not specify this anywhere I can find. Their support replied very quickly.
All being said, I am extremely pleased with these, and they are well worth the money. I can't stress enough how fantastic the patterns look, and they function excellently for security lighting also. They do come with a 3 yr warranty per the included documentation (also asked Govee support for clarification on this), not 1 yr like the Govee website says. I installed mine so that at a later date when they start selling extensions, I can easily expand my two 100ft strands so I can light the back of my house also since each controller can handle 150ft. Two 100ft strands was enough to light the front and both sides of my house skipping one 12ft section that doesn't need light. I am so glad I spent the money on these to get the RGBIC and Alexa integration vs just a basic set of LED strips.