Looking for recommendations - mobile car valet

[CharlieAlpha66]

Whilst I'm not local, I'm going to be in Northants overnight in a fortnight's time and am looking for a mobile valeter to tidy-up a couple of cars that'll have done 120 motorway miles that morning.
Can anyone recommend a good valeter/detailer that offers a mobile service (hotel car park in this instance) or indeed any that are best avoided...
Google suggests 3-4 in the area (NN6) but I'd prefer a recommendation from someone on here.
TIA