I can't open a discount brokerage account for group RRSP. The company force me to go through financial adviser.
As
@MrMatt said, you are almost certainly going to win by doing this (no matter the fees) since the company match is so huge. This is, quite literally, free money and a great deal, up to your 6% maximum.
I understand your hesitation due to the financial advisor, and you're right that there will be some tricky fees involved, but you still should start sooner than later to get that free money.
One way to get a handle of the fees involved is to start by investing the money into a money market mutual fund (which is like cash) to start with. So if $1,000 comes in from your paycheque, you can look next month to see how much money actually exists in your account. Is it $1,000 or did some of it disappear?
I "don't pay" according to you to financial advisor. Who will pay to him then?
You should ask the advisor this. Maybe they will say that the company is paying their fees.
It's a good question though. Who is paying the advisor? You have the right to understand all the fees you are paying. Try using the cash/money market technique above to test what's going on with the fees.
In the best case scenario, the company is paying the fees to the advisor. Worst case scenario, the advisor takes other fees, but you will still be better off with the free company match.
At the end of the day the goal is to
make money, and just by being in this plan, you're going to collect free money. The fees are a secondary and lesser concern, in this case.