Yes, its very difficult to say without any details.
I could tell you about an actual sealed bid transaction I have knowledge of, if it helps:
House on the market for £599.950. It was a beautifully decorated, finished and presented house with some gorgeous furniture, interesting artwork on the walls, lovingly tended garden, wow factor bathroom, gorgeous cat curled up asleep on the bed etc.
Two couples bid full asking price on the first day of viewings, which happened to be a gloriously sunny day in early summer.
Couple a. were first time buyers with no chain behind them.
Couple b. had a house on the market and said they had a bridging loan to tide them over because they really wanted this particular house.
On sealed bids, couple A bid £607,000 and couple B bid £605,000.
Couple A got the house, although they had a major wobble during the buying process and very nearly pulled out because the September 07 banking crisis hit just as they were about to exchange.
But they did go ahead and to this day have paid the highest price ever for a house in that terrace, by at least £12,000. So although they got the house, it wasn't necessarily a wise purchase for them.