Why are 747 UC Suite 6A&6K a no-no?

Folks
I have booked a pair of seats using my FF miles in UC. I'm fine on the way out choosing seats as it's not a suite and I already know the layout on that aircraft, but on the way back it's in the UC Suite on a 747-400 into LHR, and it's a night flight, so sleep would be nice.
I've not travelled in the UC Suite before, and I chose the front two seats (6A & 6K) as I figured (a) quiet as it's away from the bar area and (b) travelling with my other half they looked about the best bet for the odd chat without interfering others.
But on the seat plan on http://www.v-flyer.com/seats.asp these bulkhead seats are rated poor, although a lot of the comments suggest it might be alright if I'd like a kip.
What are the seats in the bubble like if you're travelling with a partner? Any other recommended alternatives for two travelling together?
Cheers, Howard
Ratings for seat 6A
Rating Average, posted by George F
quiet and dark, no overhead light, only reading light
Rating Dreadful, posted by Anonymous
Avoid this one unless your partner is in 6K (especially if you are tall!). The foot stool touches back to back with that of 6K and I was kicked all night resulting in no sleep
Rating Good, posted by Anonymous
this seat has both positives and negatives. positive is that it gets extra space in front of it next to the wall which allows you to put some stuff there. Negative is that you are very close to the person in 6k and if you are both big people your feet can even be touching.
Rating Dreadful, posted by Big dave
A cold dark seat where you are enclosed into the corner. The seat touches 6k and is awkward. Avoid if possible but still better than coach
Ratings for seat 6K
Rating Average, posted by George F
quiet and dark, no overhead light, only reading light
Rating Poor, posted by Buffers
Really cramped and a bit claustrophobic. So much so, I asked to be moved...
Rating Excellent, posted by britpop
Avoid this seat. You are cramped and quite exposed. Much better a few rows back
Rating Dreadful, posted by britpop
Not worth £4k
I have booked a pair of seats using my FF miles in UC. I'm fine on the way out choosing seats as it's not a suite and I already know the layout on that aircraft, but on the way back it's in the UC Suite on a 747-400 into LHR, and it's a night flight, so sleep would be nice.
I've not travelled in the UC Suite before, and I chose the front two seats (6A & 6K) as I figured (a) quiet as it's away from the bar area and (b) travelling with my other half they looked about the best bet for the odd chat without interfering others.
But on the seat plan on http://www.v-flyer.com/seats.asp these bulkhead seats are rated poor, although a lot of the comments suggest it might be alright if I'd like a kip.
What are the seats in the bubble like if you're travelling with a partner? Any other recommended alternatives for two travelling together?
Cheers, Howard
Ratings for seat 6A
Rating Average, posted by George F
quiet and dark, no overhead light, only reading light
Rating Dreadful, posted by Anonymous
Avoid this one unless your partner is in 6K (especially if you are tall!). The foot stool touches back to back with that of 6K and I was kicked all night resulting in no sleep
Rating Good, posted by Anonymous
this seat has both positives and negatives. positive is that it gets extra space in front of it next to the wall which allows you to put some stuff there. Negative is that you are very close to the person in 6k and if you are both big people your feet can even be touching.
Rating Dreadful, posted by Big dave
A cold dark seat where you are enclosed into the corner. The seat touches 6k and is awkward. Avoid if possible but still better than coach
Ratings for seat 6K
Rating Average, posted by George F
quiet and dark, no overhead light, only reading light
Rating Poor, posted by Buffers
Really cramped and a bit claustrophobic. So much so, I asked to be moved...
Rating Excellent, posted by britpop
Avoid this seat. You are cramped and quite exposed. Much better a few rows back
Rating Dreadful, posted by britpop
Not worth £4k