Here is a short collection of comments about this:
https://www.reddit.com/r/HPReverb/comments/l77c2b/should_i_buy_it/
Then if you’d like to read some more:
https://www.reddit.com/r/HPReverb/comments/l8vvun/is_this_thing_actually_junk_is_there_an/
https://www.reddit.com/r/HPReverb/comments/l9qhjv/small_sweet_spot_is_a_real_issue_at_least_on_my/
https://www.reddit.com/r/HPReverb/comments/lcce85/failing_to_even_sell_this_unfinisheduntested/
https://www.reddit.com/r/HPReverb/comments/la4ef7/disastrous_hp_support/
https://www.reddit.com/r/HPReverb/comments/l8m74x/customer_support_nightmare/
https://www.reddit.com/r/ValveIndex/comments/lc9nrd/bought_an_index_to_replace_my_reverb_g2_one_base/
[update]
Fresh from the oven:
https://www.reddit.com/r/ValveIndex/comments/lcn4du/x570_users_do_you_have_any_issues_with_the_index/