Real estate is cyclical in nature. Usually, it benefits one party over another in terms of price and activity. Currently, we are in a STRONG Seller/Landlord market. As such, if you snooze...you lose. I had a potential Tenant get frustrated because they took 3 days to "think about it". In this market, you might not even have 3 hours. By the time they responded, we had already received multiple applications.
I read a great line from one of my peers. They had a client who wanted to "sleep on it", regarding the decision to buy a particular house. He said "you can sleep on it tonight, but someone else will be sleeping in it tomorrow".
My suggestion to Buyers/Renters in this market; Be aggressive, don't low-ball (you will probably need to go higher than list price), be QUICK, submit a clean offer (NO Seller concessions).
You need to be aware of the market, and how it impacts you.