I asked this same question last year and someone recommended AJs by whetstone lane Birkenhead. I went there and I found him really good and will be using him again.
Trouble with shopping round for MOT is the recommended ones are miles from where you live, pain to have to drop your car off and kill a few hours. Used to use Village Motors as they were £10 or more cheaper than elsewhere. Now i just use the garage within walking distance. they are all suppposed to be working to the same Test standards. The ones i like are the ones who will replace a defective bulb charge you just a £5 and pass it.
I asked this same question last year and someone recommended AJs by whetstone lane Birkenhead. I went there and I found him really good and will be using him again.
I have used this garage, very reliable,honest and you can wait whilst it's tested.
I have used Autosave in Eastham (327 4979)for exactly the reason Fish5133 quoted - they are ten minutes walk away, so no problem getting there and back and they have always seemed very fair and reasonable to me.