I might go look for some links, but just off hand Doppler velocity is good to less than 1 mm/s (in the line-of-sight dimension), can be as good as 0.1 mm/s, ranging is good to better than a meter (also in line-of-sight), and delta-DOR position in one dimension, in the plane connecting the two DSN complexes and the spacecraft, is good to about 1 nanoradian.
The first two are used all the time. delta-DOR less so, since it requires engaging two stations at different complexes at the same time.
Yes, they rely on long integration times, if minutes to hours is long. Doppler requires a very accurate clock on Earth sending a frequency to the spacecraft, which is turned around and sent back. Similarly, ranging requires a pseudo-noise signal from Earth which is turned around on the spacecraft with a well-characterized latency.