I have a number of planers.......and some of the afore mentioned ones.
I own two DeWalt 12" portable planers......these do very well for a limited amount of planing. They should not snipe as there is no bottom rolls to adjust. If they do all you have to do is hold up gently on the end of the board going in and out so the board is flat to the table until it is held down by both rollers. Not to expensive, portable and will porduce a great finish with sharp knives.
I also have a 20" Grizzly. When I bought mine 20 years ago they were $900.00 plus shipping. This is a good planer and blades (4) are real easy and pretty quick to change. I have planed tens of thousands of board feet of select hardwoods with this. I bought it because it would open up to 8" and I was building a 26' X 52' two story post and beam barn and there were several thousand feet of 6" X 8" timbers to square and plane. All told I milled over 15,000 BFT of timber for this job so this was a lot of planing and shows the only downside to this planer is it only wants to plane 3/32-1/8 cut per pass. I have replaced the switch and one set of belts in 20 years of what you migh call light comercial use. Great bang for the buck, durable if run properly and not that expensive for the capacity in thickness and width.
I favorite is my old Powermatic Model 100 12". Not Portable at 450lbs. A couple years ago I converted it to a helix head...best thing I ever did to it!! Don't have to be a magician to change knives anymore!!! I bought this planer 25 years ago it it gets used weekly and some time daily. This planer says on the sticker "Please don't remove more than 1/4" per cut." This is important/good if you are prone to planing a lot of rough lumber.
I also have a 37" TimeSaver in the shop that takes the place of having to plave wide boards/panels or final finish planing.
So I must also add one more thing about planing wood. Especially rough lumber. You first need to flatten one side of the board with a jointer. Otherwise most of whatever cup/warp/curve the material has will not be gone after planing...simlpy, slightly less cupped/warped/curved than before but smooth.
In the end my advice is see how much planing you intend to do and buy the machine one level up from what you think that matches your needs. That way you won't be disappointed.