I have not used tubeless, but a friend did try it for about 6 months.
They were OK, but not really fewer flats, and when there was a flat, or a spoke problem, it was more bother to repair than with using tubes.
Like others here, he and I now use the Marathon belted tires, and the extra thick thorn resistant tubes with slime.
Heavy yes, but we each have now had at least 20K miles without a flat, so no complaints.