The quality of big intermediaries is relatively high. My husband and I went to see the house. Some intermediaries saw that we were too young, ignored us and left directly.
A good intermediary can save you money. The key is to see which agent you meet. I can think for you and point out the shortcomings and advantages of the house, instead of urging you to buy a house that doesn't suit your mind.
It is recommended to shop around. Buy if you look good, because others who look good at you will look good at you. I wish you a smooth purchase.