Fund smith

Hi guys. My FA has been introducing me fundsmith from FWD for few years but I didn't buy. It's a long term investment of 25 years with low cost every month. I was told that the projected return for 25 years is about 16% p.a, or every year is about 11%

​

Is it because the commission is very good for agent if they sell this kind of investment fund? Or in general this fund is good enough for people who don't invest in stock market? Would love to hear your thoughts if you also bought this fund, or just in general

​

Thanks in advance!!