First month free when you sign up by 31/01/2022 and save $5 per month if you have a mobile plan with them. Cancel within the first month and pay no exit fees. Maximum modem cost of $612.
Plan with uncapped speeds ("Max 5G") is $10 more for $85 per month or $80 per month with a mobile plan.
Edit: Unlimited data (FUP applies probably), not unlimited speed!!