I ran the 7900 all day today cutting mostly hardwoods between 20-30". The saw is a winner, but IMO will not beat either a 385 or a 066 like some have claimed. It does have more jam than a 460 and is alot lighter than all the saw mentioned above. It's in fact as light or lighter than my ms-440. No for the specifics. Filtration system-Second to none, its better than husky and stihls sytem. The filter was like new after a full day of run time which supprised me since I was sceptical of the dinky filter size. AV sytem-very good as well, as good as a husky and better than a Stihl. Power charachteristics- The power band is a cross between a Husky and a stihl. Its not a stump puller like a Stihl, yet its not a screamer like a Husky. Build Quality- Very high. The saw is avery well thought out design. The coil is located in front of the flywheel and behind the oil tank which keeps it in a cool area, as already discussedthe filtraion sytem design is impressive, the muffler is very large and unrestictive compared to Stihl's imparticular. Its also quiet compared to the other makes. The fasteners are all top quality items and the saw can be broken down by only using the tools that come with the saw. Also little touches like a high quality plug cap that is located by a rubber grommet shows Dolmar is serious about quality. Ergonomics-very comfortable. The handle is angled like a husky and the spread between the front and rerar handle is on the long side. Both of these features make the saw gconfortable for prolonged use.
Overall I would have to say this saws a winner and if Dolmar ever gets a decent dealer network developed they have a chance of getting into the pants of Husky and Stihl as far as the pro market is concerned.
BTW I hope my comments on the rellative power of the saw doesnt start a uproar. Keep in mind that this saw is new and is still on the tight side(The7900 seems to be tighter than any husk or stihl I have ran when new). I also havent fooled with the hs jet too much, so it might gain alittle power. i still dont think it will beat either a 066 or a 385 though.