I have (6) of the older Worth version. They are close to 12 years old. I agree that they seem a little flimsy but I have caught up to 5 lb fish (bass, pike, pickerel, trout, catfish) without problems. Very easy to set up & store. Make sure you dry them between uses. I remove the flag rod and let them dry indoors after each use. After drying, store them assembled/locked with the magnet in the rod & reel making contact.
However, over the last two years I did break a spool off of one and have repaired (3) broken flag rods (rod is hollow - use dowel & glue). I'm gradually retiring them and have replaced three of them with Nor'Easter tip ups. I'm looking at trying JackTraps or Heritage Lakers for eventually replacing the remainder.
Jeff