I had mine with Mr Koh last May. Very nice person to work with. He prepared all the vows etc in cards. Before the solemnization, he will go through with us on whether we want it in English / Mandarin (although he had both sets of cards ready).
We had ours in the hotel, hence had to do it on the stage. Initially the hotel staff placed chairs with the couple facing the audience, being stage shy, I asked for the chairs to be turned around (solemnizer facing the audience and couple's back facing audience instead).
But when My Koh arrived, he advised that we faced the audience instead as its our big day. Hence, hubby asked the hotel to make the change.
I am so glad that we changed the seating arrangement as it turns out very nice on our photos and video.
Mr Koh did a great job conversing in Mandarin and English. Infact he sort-of took up the role of the MCs once he's on the stage, greeted our parents, guest etc.
I did heard from some couples that some solemnizers will want to meet the couples before signing the form. Either to ensure that the couple know what they are going to go into or to speak to them on some issues (abit like marriage preparation, sharing their marriage experience etc).
For us, my hubby went alone to ask Mr Koh to sign on the form as I cant make it. Hence, its my first time seeing him on my ROM day. He managed to calm us down, assuring us that everything is in order, going through all the steps before going on stage.
He left after our ceremony ended without the Ang Bao. End up my hubby had to chase after him to gave him the red packet.