If it only takes you 20 minutes total you should be fine with the hand pump - You might get more with the electric one. There are a few brands out for double electric that are much less expencive but I'm not sure how well they work. All the othet moms I know use the medela brand.
As long as you feel like you are getting everything out that should help. I help it out by massaging and lightly squeezing and that might make it come faster for you as well.
The electric is easy as well - The freestyle you can plug in or use battery and it lasts for a long time. The cleaning is probobly very similar.
Honestly you are getting a good amount the way you are doing it right now. If you need to increase at any time just pump for longer on each side. That will stimulate more to be produced. And/Or pump more often. As long as you are making enough for your LO you do not need to get any other pump.
As your baby grows he will eat more and your supply will go up. Even if you are at work. When I pumped for my first it just kept getting more increased slowly. By the end of the year I had to get larger bottles for the pump sometimes.
If you want to gradually increase thry to pump extra at night and first thing in the morning. The more you pump and he nurses the more you will produce. Its all about supply and demand.
Also when they get bigger they will drink more but less often and they will start on solids as well.
Hope that makes you more at ease. I would really reccomend investing in a double electric pump. I can get a 3-4 oz bottle per side in 10-15 minutes. Medela makes really good ones. The best one is the freestyle but the Pump in Style advances works well too. It is pricy but lasts for a long time.View Thread
I also have that problem. My DS is now 10 weeks old. He had some trouble with staying on when the first let down came. Sometimes he would look like he choked a bit on it or would chug it down.
I find that reclining a lot helps and having him lay on top of me or if he sits more on my leg ( so more upright )and we are not tummy to tummy. kind of like when you craddle your baby and then just drop down his butt a little.
She will get better as she gets older. Now my DS barely fusses.