I bought the Play 5 as my first Sonos purchase, and absolutely loved it. Days later I found myself in the store purchasing two of these (Play 1 speakers) to add to my set. Within a week I ended up purchasing 2 of the Play 3 speakers as well as another Play 1, totaling my count to 6 speakers, (one Play 5, two Play 3s, and three Play 1 speakers!) At the start, I had 0 intention of buying so many speakers, especially because they seem pricey, however they are really priced well considering their features. The fact that they connect so easily to my home network, and the software is really easy to use, and I had no static or any issues with the wifi (they are crystal clear even at the loudest settings, and they stream instantly as if they are wired). Additionally, I was originally looking at Bose, but doing a side-by-side comparison in the store, I chose to invest in Sonos because I really didn't hear a difference, plus Sonos was less expensive, and the salesperson told me that the software interface is more user-friendly, which is great because I'm fairly tech-savvy but even the non-tech people in my family have been able to use this system with ease.
At first, I thought it would be a set-back that you cannot stream via iTunes, or computer sounds, per say - you MUST use Sonos's app/program, therefore only songs loaded into Sonos's library can be played (as well as the multitude of free, actually extremely useful, streaming radio stations.) However, the program (for pc) and app operate very similarly to iTunes, so it's really intuitive to use. All I had to do is direct Sonos to my iTunes folder (or any other folder where your music is saved) and it saves it to it's library - it won't literally copy the files, so you don't need to worry about it taking up any extra space, it just looks in that directory. I have several wifi devices as well as computers and I can control all of the speakers from any of the devices (even multiple devices simultaneously) without any delay. I have a speaker in my basement, and the moment I click Play while being upstairs (2 stories up, but on the same network) it starts playing instantly, as if it were wired. Lastly, I added on a Seagate Central (NAS) hard drive to my network recently, and decided to move my music library to that wireless hard drive. I redirected Sonos to the folder on there and it works just as well as if it were on my computer - there's no difference...the actual benefit to this is that I don't need to leave a computer on to play from the Sonos. So now my set up can be easily controlled from a tablet, my phone, iPad, iPod touch...pretty much any device with Windows/Android/iOS without the need of accessing my PC. I have about 50 gbs of music and when adding to the Sonos app, it took about 5-10 minutes for it to load - but this is just an initial load to allow Sonos to read all of the album art, and build an index. From there everything else is instant. I tested it out by first only adding a few gigabytes and it took about 30 seconds to a minute to build the index - again this is only for the initial setup of the music directory. All in all I am thrilled with the entire Sonos speaker set, and definitely plan to add more in the near future because I have them all spread out throughout my house so that in times of a party, etc there is continuous flow of music and they are well hidden - at a mere fraction of the cost of what a piped-music system would cost! A final note I forgot to mention above is that all of the speakers can be controlled simultaneously as a group (where you can have them all set to the same volume, or even adjust each volume to different levels) or individually, simultaneously - meaning that from the app, I can play a different song on each speaker simultaneously - there's no sort of "log in" per speaker, each can be controlled on the fly. I definitely recommend any of the Sonos Play Speakers to everyone!