If you've never had a problem with Orchard, then trust your instincts.
If you need it doing now, today, then Walsh's
Walsh Auto Ltd
190 Cleveland St, Birkenhead
0151 647 5131
They do MoTs without appointment, just drive in, but if the MoT is up on yours you must call them first so that you're covered to drive there (law says it must be a per-booked MoT).