[emdowling]

This. Especially for compound lifts (eg: back squat, bench press, deadlift, cleans, etc). Building good technique and form is essential to avoiding serious injury and making sustainable progress. Having a trainer, even 1-2 times a month, is a good investment if lifting is a part of your routine.

[DwnVoteHoneyPot]

Darebee uses body weight, much less risk than lifting heavy. Sure it's much better to have a trainer, but not essential like the lifts you mentioned.