Stella,
I guess you have not come to a decision as yet. Not much of 6kg washers around to make comparisons with.
However, you may wish to consider the WFE676 model rather then the WFE 876A. The only diff between these 2 machines is the rpm differences. Of course $$$ is another factor to consider. Difference in terms of retailing cost should be close to $100/-.(depending on where you purchase the machine)
Another choice would be to take the WFH 08771A model. The diff would be that it is a 7kg model with 800 rpm(same spin). But the feature for the machine is much better. The A+A rating for the machine is another factor to consider. There is also the OptiA45mins full load washing which will save you even more time.
You may also wish to consider the EWF 984,EWF1084(Electrolux) or the WAE16060SG,WAE18060(Bosch)if you decide to switch brandings.
The EFM102K dryer is a 6kg dryer. You may wish to put into consideration the Electrolux EDM 606A dryer.
Overall, not a bad choice but if given a choice, i would still opt for a bigger capacity load for the washer.
Shop wisely and wait for the correct timing to purchase. Await the sales coming in the middle of this month..... (cant inform you which departmental store is having sales)... Once again.... the HDB shops are in for another surprise.....