DOT 4 has a higher boiling point than DOT 3, but absorbs moisture faster. For normal street use DOT 3 is recommended.
I just flushed the brakes on my Integra and figured out an easy one-man method. I used just a piece of clear tubing attached to a drink bottle with a hole in the cap and some fluid inside. Then I set it up on each brake caliper and pointed my GoPro Hero 4 camera with wi-fi towards the bleeder valve and hose, and used my phone as a video monitor while sitting inside the car and pushing the brake fluid out with the pedal. It worked like a charm, and I had all the brakes flushed and bled in about 15 minutes after getting the wheels off. I was amazed how each and mess-free the whole process was. Only thing I had to clean up with a slight dribble of brake fluid that came out around the bleed screw threads.
I tried a pneumatic vacuum bleeder and it was absolutely awful. Hand vac bleeder wasn't much better. I will be doing it this way with my GoPro from now on.