K-Drives are not very enjoyable in their current state. It takes 30+ minutes to level one. Affinity boosters do not work on them, they don't gain affinity from other players' kills (unlike every other thing in the game), and are worse than an Archwing in almost every way. I enjoyed using them at first due to the novelty of them, but I just don't anymore. For items that have minimal use barring mastery, it shouldn't be so time consuming to level them.
However, I do have some suggestions to make K-Drives more enjoyable over all.
1. Allow them to be leveled like other items. Ex: make exp boosters and affinity share work as expected.
2. Allow sidearms to be used while on them.
3. Collision damage. Enough to kill average stuff in one hit while at high speeds would be great.
4. Make the K-Drive mods that deal damage better. More damage and/or larger AoE would be ideal.