Dear Suhas;
Congrats first of all;
There is no harm to go alone for the purpose u specified but remember that ur family should enter Canada within a year as per validity of your COPR (one year from your date of medical or expiry of passports which ever comes first).
Secondly, I would like to encourage all the members not to lose hope and cases are not over. Cases are valid for one year from the date of PER, means the Visa Office has to make decision in one year time. So now calculate yourself that how much time you have spent in waiting since PER. The More the time you wait means less time remaining in decision
Wish all of you, all the best and remember me in your prayers.