That's certainly good to hear Bob!! I'm currently awaiting delivery of a World Model Ultimate 120, so it's good to read a post this positive about their quality
The only other ARF I've ever had was my very first plane (a Royal Air 40) many many years ago, so I didn't really know what to expect from a modern ARF. Desire to have a large biplane and a severe lack of spare time to build it made me decide to go the ARF route. Fingers crossed it's as good as your .30 sized one