Should I switch to Groww?

Currently I have my stock investments done in Bajaj brokering but for in case of mutual funds I invest through SIP with the help of a stock broker, who has his own website where I can track my investments. Usually if any new fund comes up I invest through the link sent by him regarding the folio. Do I miss out on any advantages over the people who use apps like groww and zerodha in case of any fast withdrawals etc. Note : He is a reputed stock broker and my family and friends have been investing with the guy from long time but they never had any issues (but also to note the apps were not as popular as before so they might have invested as such)