I have the 239. It's an amazing little tuner. I use it at home on 160 through 10 meters with a 100 foot doublet fed with 300 ohm twinlead. When on the road, it tunes a 110” whip 80 through 6 meters. At $179, it’s a bargain. You can have lots of fun experimenting with loops, verticals, long wires etc. Go for it!
I wish I had one years ago. Could have saved a bundle over store bought antennas.