Koong Yee/idees/chng Poh Guan

Hi I just bought a five room resale flat, and only have six weeks to complete the reno as i have to move and hand over my own unit seven weeks later. so we need a reliable ID/Contractor who can keep to their schedule without compensating on their quality of work )

am deciding between the quotes of IDEES (You Ting), Koong Yee (Alloysius) and Chng Poh Guan (Derrick). Does anyone have comments on the quality and speed of their renovation works? We dont have a lot of carpentry, mainly kitchen and bay window cabinets. The rest is tiling, painting, and constructing one room.

So far we have had quite good discussion with Koong Yee, except that their quote is generally higher than the rest of the quotes. Just like to hear some opinions if any. Thanks so much