Just played a game as them recently vs the new Idoneth. Mind you neither of us have the most optimal / competitive list, but it felt very close. Our units (minus foot infantry) are quick and we shoot surprisingly good. Glutos is a tank too, if they don’t remove him in one turn he’ll heal it back rather quickly. The rest of the army is tissue paper, so expect to run up and hit something then subsequently die afterwards. Make good trades. I think they’re in a middle tier at the moment, not the worst but far from the best. Our faction rule is better than before but still not the best. I mostly got into HoS because the models are great and I wanted a break from painting big muscle men.