I'm slowly climbing, playing mainly as Ana and doing my best to heal, call threats and make sure I'm positioned safely. Seems to be working - steady improvement in results.
Had a win run cut short by someone who's apparently a grandmaster/'pro genji' smurfing on the other team yesterday - a few folks on my side recognised the alt account name immediately and said to watch him. Frankly he could have beaten any of my team members (me included) 3-on-1 without apparent effort.
Amazing play to watch, but somewhat frustrating to encounter at 2400 ranking. Two of our guys dropped about 1 minute in, and it was clear we'd lost, so everyone else spent the rest of the round messing about and chatting in match chat. All very good natured and fun, despite the annoyance. We all went DPS and tried to off him with inappropriate picks. I managed one kill (as soldier 76) for about 9 deaths.
edit:
After several really close and fun rounds last night I'm up to 5 points away from a rank up. We won with attack bastion on Dorado. The guy came on mic and said "I know it's not the usual, but trust me on this, let me build ult once and combo with ana". We pushed the standard way up to the entrance to the facility, then did the combo ult and wiped their team in a few seconds. He zoomed up to the door to their spawn and set up in turret mode, I kept him up for the 5-6 seconds Rein took to catch up and shield him and the enemy players just got mown down several times in a row. Quite a brutal play. I imagine at higher rank it wouldn't be anything like as effective, with people more readily able to counter the bastion with a quick genji swap/sleep dart.