I found that using a dishwashing machine saves me a lot of time! I am using Siemens (small size). I find it functions okay. I also suggest you buy a bigger one if space allows. I find that I always need to place twice or more time in the machine when there are 4 persons' dishes!
For the powder, I have tried Sun and Finish. I found Finish is far better than Sun. I also use the Finish Rinse Agent. I remember last time I shop in Park'N Shop, I saw Finish in the shelf too. So it's convinient when you can shop it in both Park'N Shop and Wellcome.