I bought this out of need to tune a whip antenna on my trailer. I know it would work and does well. It cost me a lot though for one on SS. However, I needed to communicate below 50MHz.
Integrates well with my Icom IC-7300. Great for long-wire or verticals of any length. Just take care the wire length won't be resonant cross-frequency. I am using it with a 55' horizontal wire on the roof.