General Priceline Q from a newbie - I've searched

I've searched here and the broad internet and can't find any good answers to this.

So I have a trip coming up and wanted to keep it free-flowing, i.e. maybe choose the day before the next city I'm going to travel to. So my Q: Is Priceline generally going to be an effective method for me to get a 4* hotel room for the day right after I'm bidding? Or are there typically no cheapo Priceline rooms left at hotels if you wait until the day before?

tia!!

I'm not an expert on Priceline but they sell rooms at hotels that are underbooked. I would think that this would include last minute opportunities BUT this will greatly diminish your chances of getting a room at any particular hotel. As long as you are in a location with several larger properties you might be OK. That said, I am too anal to wait till the day before to make a reservation. The only exception would be staying in Gasthofs in Germany or Austria. If you stop in the smaller towns there is almost always a Gasthof with an available room but you have to be OK with not having a private bath in some locations.

+1 for rmorin's response. I'll also add that going the priceline route can result in you paying more if hotels are booked up due to a concert/conference/sporting event. Probably a small risk however.