The La-7 is one of those planes with some really great qualities that will get you killed if your not farmiliar with them...and even then if your not thinking 30 seconds ahead...you are doomed.
The La-7 has an instant turn rate that is phenominal, and a sustained rate that is still acceptable. Problem is, if you get too slow, its turn rate is pretty dismal, and it departs like an undecided water buffalo in a bad mood.
The speed and acceleration, especially in a dive is nothing short of spectacular. Unfortunatly, it makes a spectacular death when you plow into the ground at 550mph. It also takes quite a bit of getting used to diving from above, as you tend to overshoot everything with a such regularity, that high yo-yo's become your best friend.
The ammo is powerful, and kills almost any plane with 1 good burst....provided that burst is from under 400 away. Anything farther than that and your wasting your time. Im not sure if its the velocity being very low, or just the wieght of the shells, but deflection shots beyond 300 are very hard to master, and even dead on someones six, you can fire all day at 600 and never score a hit. So the limited ammo is more than enough for multiple kills (my record is 12), but its very important to only fire at very close range.