I've never had any complaints but I use a keyboard with Cherry MX silent switches. Highly recommended if you are worried about the noise, although they are hard

I've never had any complaints but I use a keyboard with Cherry MX silent switches. Highly recommended if you are worried about the noise, although they are harder to find on keyboards than other switches. The guy I sit next to uses a mechanical Logitech keyboard with their custom switches and I've never heard any complaints about that one, either.