Yes you should be excited, this is AIP! Congratulations! COPR should come in several days, if it follows the recent pattern we've been seeing.
And you CAN apply for OHIP with this letter. See: https://www.ontario.ca/page/apply-ohip-and-get-health-card#section-2. Print it out and show it when you sign up. Not all Service Ontario people will accept the email if you just show it to them onscreen, so better to be safe than sorry and bring along the printout.
You do need to wait for COPR to apply for a SIN, though: https://www.canada.ca/en/employment-social-development/services/sin/reports/apply.html#primary. If you apply for it with the COPR letter (before you receive your PR card) you'll need the COPR letter, and your passport, driver's license, or ID showing residency in Ontario.
Hope this helps!
I have been in the same situation. They sent me an email to confirm if I reside in Canada which i confirmed then my statues changed to Complete and then it its written that i landed at the etobicoke office and became a permanent resident since 24th of July. with the AIP and SA approval i applied for OHIP which will be valid for a year and they mentioned when i receive my PR card i should go back and change my OHIP card. However, i only have a SIN for my work permit and i cannot apply for a SIN so far because up until now i did not receive my COPR document. I have called 3 times so far, the first time in late july he said that within 3 to 6 weeks you did not receive it call us back and i shouldn't worry cause am a PR resident which he congratulated me for it and he said that he can see that until now they didnt send it. The 2nd fone call, the lady told me that some do receive COPR and some dont and now i should wait for my PR card and assured me again that am a PR resident. The third time which is today, i wanted to inquire more about it, another lady was like everyone should receive the COPR. So she sent them an email that they havent sent me the COPR until now. So, im just waiting for either a COPR or for somehow to receive the PR Card.I think I am also in the almost same status. I have received a letter on 11th August stating that
Then on 13th I got an email from IRCC Etobicoke asking me whether I am in Canada or not. We replied Yes to it.
After that here my status changed to COMPLETE with a message "You entered Canada at the Etobicoke IRCC office on August 13, 2020 and became a Permanent Resident."
But till the time I have not received any letter or anything like CoPR. I am not sure is it the same case with everyone or not. I tried Webform and they said that I should wait and they will send me something :-D
I am not sure whether I should be excited about PR or wait till I get the PR card. Also not sure whether I can apply for OHIP or SIN number.