I learned skiing at Speikboden and it is honestly amazing for beginners. Even though it is quite small there are never any lines at the lifts and it is never too packed. The groomed runs are great, though one should have in mind that they are not too hard and not too steep either, since there are mostly green and some blue runs. Nevertheless, there are many really cute restaurants with great views and tasty food that is not too expensive. The Ski school is great for kids as well as adults, with kind and competent instructors.
Overall it is a great resort to spend some time in and learn or improve ones skiing/snowboarding performance, though for advanced athletes it is not really challenging and might get boring after a few days.