The biggest problem you will have learning on most Stick-type planes is that they frequently have symetrical airfoils and higher wingloadings, and are are set up to fly faster than most trainers.

Higher airspeed means you have to react faster, and the ground gets closer much sooner. That's not to say all symetrical airfoils are bad for training, there have been some really great, slow flying symetrical wings out there.

My first plane (on bad advice I got years ago) was a stick-type, and while I learned on it, I broke it more than I should have, and it took me longer to learn than it should have.

That said, I haven't flown the exact model you refer to, so I can't actually speak to it's suitability as a primary trainer.

If you can see one in person, compare it to a trainer. Compare the weight, and the overall size of the wing (span and chord) to get a rough guess at the relitive wingloading. Lower wing loading will lead to slower flight and easier learning. And compare the thickness of the wing. The symetrical section will have to be a tad thicker than the flat-bottom airfoil found on most trainers to have simular slow-flight qualities.