What is the best pump for balloons?

Bought a Majiloon from Kenosha Magic a few years ago, and I love it--fanny pack with dual compressor, runs on a lithium battery so it recharges in an hour--and have had VERY positive help (with the fan going out after a year) with FAST turn-around from the owner, DJ!

never heard of the maji loon pump. I saw that it takes a filbert like 4 weeks to order, I did get the two smaller hand pumps, but after paying out $50 in rental tank fees....deciding I need to order something else ASAP.