This part will be a short but very detailed conclusion to my Living with the Acer C720 Chromebook series.
The Acer C720 Chromebook maybe under specced and use an older Haswell based Intel Celeron 2955U processor instead of a newer Baytrail based Intel processor and only have 2GB of DDR3 RAM.
The specification of the Acer C720 really hide the fact that it's one hell of a fast machine and in the month of owning it I've not come across any lag or slowdown due to the 1.4GHZ Celeron 2955U Processor or the fact that it's only got 2GB of RAM, but that could be due to the fact that the Acer C720 packs a 16GB SSD (out of that 16GB of SSD Storage only 8.4GB is usable by the user with the rest being reserved for Chrome OS) and with Chrome OS being a lightweight OS it takes full advantage of the 2GB of RAM and the Celeron 2955U may be an older Intel Processor and only have a clock speed of 1.4GHZ but it gives exceptional battery life without sacrificing on performance like what you have to do in Windows with a faster processor, but with 100GB of free Google Drive Storage for 2 years on top of the free Google Drive Storage that you get as standard with a Google Account then the 8.4GB of internal Storage doesn't really stop it from being a usable machine.
If you want a Ultrabook that looks like a traditional Windows-based Ultrabook then I'd recommend the C720 or if you want a touch screen then the C720P as apart from the Chrome branding in the upper right corner of the lid and the lack of a Windows COA on the bottom it looks like any other Windows-based Ultrabook out there.
If you're in the market for a low-cost Ultrabook with excellent battery life and don't need any of the bloat associated with a Windows machine and can live with cloud computing or are already invested in the Google ecosystem then I'd recommend the Acer C720 Chromebook.
My next Chromebook related post I'll be reviewing the iPearl mCover Hard Shell Case for 11.6" Acer C720 / C720P series Chromebook case that I'm expecting to come in the Post on Monday.