Just did our bedroom with some laminate last week, about 300 sqft. I did the rest of our 1st floor like 7 or 8 years ago, about 900 sqft. If you have the time, it is certainly worth the savings IMO. You just need a regular miter saw, don't need a compound unless you just want to buy a new tool. The cuts don't have to be perfect, just close enough to be covered by the 1/4 round trim. The door jambs are one spot you should cut back and slide the floor under the wood. That does take some work, or get a saw with an exposed blade. I made my own jamb saw from a $20 Harbor Freight 4" grinder and a $8 4" portable saw blade. Deadly, but it works well!
Oh, and if you go the floating floor method, Get The Silencer underlayment. I got it for ours, and it is the easiest underlayment and vapor barrier they have to install. LMK if you want info or want to discuss it.