my 2 cents
If you’re planning on a heavy fish load - go with an oversized or larger skimmer, but also plan on more frequent water changes or supplementing trace elements to replenish those lost from heavy skimming
If you’re planning on a light fish but have a good bio diverse cleanup, including live rock, algae’s, filter feeders, scavengers, etc, you can go lighter on the skimmer load.
There are a ton of very valid experienced based opinions that range from not skimming at all to over skimming. IMHO, go light fish load, mixed reef with a good biodiversity clean up, some charcoal, and don’t over skim. You’re doing the right thing by asking and getting peoples opinions, I use a Precision Marine Bullet 2, I don’t know that I would have gone out and bought it, as it just happened to come with a used system I bought. I would think you need to boil down what features you want such as Becket, needle wheel, recirc, etc. pick a couple reputable companies that have good feedback on this forum and start looking for the best value. If you have time, don’t be afraid to buy used, as there is not allot that can fail or wear out on them as long as they were not abused.