Looking for advise and recommendations on a nice record cleaner.

Like most things, the answer is largely dependent upon your budget. I had an old record doctor, which was generally effective if you worked at it enough, but very inconvenient. I was unwilling to play the price for a.Degrittet Which would have been my choice if money didn’t matter. I ended up with a Nessie Vinylmaster + And am generally satisfied with my choice. For me, it was a good blend of performance, convenience, and value. I’m sure there are better choices, but I suspect they would cost substantially more money
 

(a) have an audiologist clean out your ear wax (and do a frequency sweep at the same time, so you get a baseline of how your ears are hearing)

(b) ban your friend from your music room; he/she wasn't listening to the music, anyway!

Degritter - really well designed and made.

I’ve been using the AudioDesk Ultrasonic cleaner for over 10 years having owned the original model and now the Pro upgrade. Cleaned 2,000+ records. Whilst expensive, it’s proven to be the best investment in upgrading the sound quality of my system. Even brand new records need to be cleaned.

With a MT-10, and assuming you also have a high value cartridge, you should not be playing vinyl that is not cleaned well.  Period.

Utrasonic is the standard in my opinion. Several have been mentioned here.  I have used the Audio Desk Systeme for many years and it improves all records, new and old.  Amazed at how good some LPs from my high school years sound.