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Parts for Maytag MBF2254HEW Refrigerator - AppliancePartsPros.com

See the attachment for the tech sheet

He[COLOR="Blue"] unplugged it and plugged it back in and it rebooted and it kicked back on.[/COLOR]
It would be helpful to know if the condenser/compressor fan was also off.
If it was then odds are that the problem has nothing to do with the compressor. The reason is that this fan and the compressor are wired in parallel so when one is on the other should be on.

[COLOR="Blue"]And it appears to be working fine. but he says the compressor has no freon.[/COLOR]
If the freezer is cooling properly then he is wrong.
You will have no cooling at all if there is no freon. You will have poor cooling if the freon is low.
Put a thermometer in the freezer and check it.
It should get to 0 to 5 degrees F.
The fresh foods section should be about 38 degrees F.

[COLOR="Blue"]And that we need to replace the refrigerator.[/COLOR]
Not sure why he would recommend replacing the fridge unless he is trying to sell you the new one.

[COLOR="Blue"]I wanted a 2nd opinion to see if I should just replace the compressor.[/COLOR]
Replacing the compressor is an expensive repair so usually it makes more sense to put the dollars towards a new unit.
Also if the person who is doing the repair is not very good it is easy to mess this up. Then the unit runs OK for a while and fails again.
[COLOR="Blue"]
And wondered how long the refrigerator might stay cold for...it seems fine at the moment.[/COLOR]
Sorry but I do not know.
I can tell you that from what you have told me I would not use this repair person again.

I do not know what the original problem was but am sure it was not "no freon"
It is important to note with this no cooling problem:
Is the compressor on?
Is the condenser/compressor fan on?
Is the evaporator/freezer fan on?
Do the interior lights work?

Could be that your problem was just a control board (computer) glitch.

Is this unit on a separate line or are there othe4r outlets/appliances on it.
If it is not a separate line I would suggest you use a surge protector.
It plugs into the wall receptacle and then the fridge plugs into it.
It stops voltage spikes on the line which can confuse the control board.
A1000 joule unit is recommended but a 750 will do if you cannot find a 1000.
Places like Home Depot etc. sell these.