I bought this along with a Squirrel Buster Plus seed feeder. The latter has worked flawlessly to keep the little buggers off the seed feeder and emptying it in a matter of hours. The Predatorguard baffle I added really did the trick and the squirrels haven't even been on the seed feeder to activate the weight gate. But I digress...I bought the suet feeder knowing full well the complaints others have had regarding this and that. I have mine hanging from the tree. Finally, after about a week of hanging around, a squirrel finally made the leap and landed on the feeder. It slammed shut immediately and it promptly ran off.The birds, though it took them a few days to get comfortable with it, are going to town! The suet is dropping down just as advertised. What does drop off hits a tray and the birds eat that, too. It has been in the 90's since I installed it, so it could be that heat helps the suet blocks slide down as they are consumed from the bottom. Perhaps in winter, they will "hang". But, it'd be easy to help them to drop if they did get stuck. Beats having to replace a block a day which is what I was doing when the vermin were hanging on the old one.I will update the review as things progress this summer. But so far, worth the cash.UPDATE: 07.08.2020: I refilled the suet feeder with two raw blocks today. I did not mention you do have to remove the suet from the plastic tray it comes in. Otherwise, the block will not drop properly as it is eaten away from the bottom. I always keep my blocks refrigerated, so loading it isn't as messy as one might think.I experienced one problem when I reloaded it. One of the yellow plastic trays would not seat well. It caused the outer drop-cage to hang. I finally got it to where it seemed to be functioning. However, I came out this morning and found it stuck closed, likely from squirrel action. I tapped it and it sprung back up. I'm going to take it apart again and see if I can stop the plastic catching the cage. May see if I can adjust the spring tension, too. Stay tuned!UPDATE 07.13.2020: I'm an idiot. I had one of the yellow suet trays in wrong, not on the tracks. This caused the tray to hang on the feeder cage. Problem solved. The feeder continues to confound the squirrels, but the birds are loving it! Little buggers don't even bother anymore.UPDATE 07.18.2020: Probably the last update. This thing had proved to be completely squirrel proof. And it affords tremendous entertainment when they do try and get some suet. They are completely baffled. To address those who say the birds simply won't feed on it, give them time. I'm going through as much suet not from bird action as I was before from squirrel action! It functions perfectly.UPDATE 07.08.2021: OK. Another update. After a year the suet feeder is still functioning perfectly. I can't recall the last time a squirrel even attempted to jump on. And I can't keep it filled with suet hardly because the birds (especially woodpeckers) love it. The only drawback thus far is the large crows can feed off it and decimate a suet block pretty quickly. But, hey, they gotta teat too I guess!