I have had good luck with pullers for suspension work.
That balljoint tool in that JC Whitney kit that has the pivot hinge bent removing a tie rod end, while a quality small 2-arm puller did the job. Not impressed. Can't comment on the rest of the kit.
I honestly wonder if you really need all that stuff. I think a handful of quality pullers might be a better investment.
Also a 'sometimes' Harbor Freight fan,
I recently acquired this tool:
This thing is beefy and adjustable. (Not all Harbor Freight stuff is this good. Their cheapo puller sets are not particularly tough.) This item is far more flexible than the fixed-width pitman pullers. It is better than a normal 2 or 3-arm puller for suspension work because the arms lock in place. Happy with this.
On my tool wish list are a set of Posi-lock pullers.
A great design, but they are expen$ive. About $50 at Sears for a midsize puller that would be good for suspension work.