Fruit Fly trap: Great! Silverfish trap: Not so much.
I found the website when looking for silverfish traps as we seem to not get rid of them through regular household methods. While I was there, I decided to pick up a fly trap and a fruit fly trap as well.
The website is nice and clean, and ordering is easy!
When the package arrived, I set up both the silverfish and the fruit fly traps. While the fruit flies are well caught and thankfully no longer an issue, the silverfish traps seem to have done very little. After 1,5 weeks, only in 1 out of the 4 set traps there was a dead silverfish, and I have so far killed another half dozen on my own when they were crawling around.
Therefore I would recommend you for the one pest, but not the other, which is unfortunate as I am now still out for a good way to eliminate the original intruders.