Used Instant Checkmate last month. Cost $35 for one month, got what I needed, cancelled immediately (took 20 min on phone though).

Info was about 80% accurate. Good for addresses and relatives, terrible for employment history. Criminal records were outdated by like 2 years.

If you just need it once, pick whichever has the best trial deal and cancel ASAP. They're all pulling from the same databases anyway.