Will Quad 989s work well in my active room?

I am considering purchasing the Quad 989 and am concerned whether or not they will work in my room. Room size is 20' by 18' with 7' ceilings. The room is very active- located in basement with carpet and pad on concrete slab and sheet rock walls.

I have auditioned the 989s and really like them. Unfortunately, the planar design and several comments in Audiogon concerning the sensitivity to placement have me wondering whether or not I will really be able to enjoy the quality of the speaker in my room.

I understand that the active nature of the room will be an obstacle for any speaker I use, but I am wondering if my room is going to work against me such that I would get better results using a dynamic speaker such as a Piega or Harbeth.

At the same time, I am somewhat hopeful that due to the low ceilings, the Quad might be the better speaker to chose to avoid a thundering bass issue.

Any insight into this would be appreciated, including ways to tame the room or other speakers/components that I should consider. Fortunately, I recently moved from city to suburban life and am building this system from the ground up with no existing electronics that need to be accommodated.