I've heard the name "SeaSucker" and have heard some good and some bad, I decided to give it a try based on being a Florida company with US made products. I change trucks every 2 years or less and wanted to avoid the cost, downtime and permanence of another NMO or hard mount antenna. I work in the energy services business and cell phone boosters are a must. This unit seems to hold well but will require daily pumps no matter how much effort you put into cleaning and prepping. If you had a road trip and needed this it wouldn't be bad, it would be had to justify the price for a few uses. Overall it does feel quality but it is also bulky and protrudes pretty far off your back glass. That said the sucker does it's job. I have run 85+ mph West Texas roads without issue, driving rains, winds and sand have not shaken it loose nor have ranch roads, forest service roads or any other harsh conditions I've thrown at it. You can fold down and run through a carwash without too much worry as well.
Overall it's not a bad product but in retrospect I will just bite the bullet and hard mount the antenna going forward.