I've had a HTS6510 for a couple of months now.. I've had a good play and have "invested" in Sky HD too .. I thought it was worth a quick update. First Impressions... It's not 5:1 sound sound. But no one ever said it was. For me the speakers are in front of you and Sonowave or not... it doesn't make me think otherwise. However, the addtion of the subwoofer and the six front speakers does offer excellent sound when playing DVDs. The only downside is the obvious lack of rear sound. The subwoofer itself is large and I had some difficulty placing it.That said .. 2 months on and I hardly notice it until hit pumping out base. I bought the unit to go with my Philips 32PW9641D LCD TV and it looks fantastic. It sounds great too. If you don't like the neighbours put MTV Base on and watch the lamposts outside shake!! Second impressions... The unit does deliver a lot of bass.. Sometimes I think too much. I now have the sound from Sky HD coming into the unit through an optical to analogue covertor (maplin) into the Digital IN. This has improved the sound reproduction which did some to vary before when using the AUX IN connections. My only gripe would be now that the sound from the Sky HD is less than from a DVD. However, unless you want your ears to bleed its quite acceptable. It's performance with DVD's from a sound perspective is great. It's true its not 5:1 and I thought i'd miss it. But I didn't want a room full of wires. It would be nice to have more options to vary the sound... Maybe greater flexibility to turn down the subwoofer. There is a 'night mode' but this can only be used on DVD's not when the sound is coming from Sky Picturewise.... I have it connected to the TV via HDMI. The upscaled DVD picture from a DVD isn't quite as good as the pictures from Sky HD. But it does make a very good attempt at making them appear HD. Success varies between films.. "The Incredibles" for instance looks (and souths) fantastic. Other real life dramas do not appear to be as good as a true HD single. But I'm am judging this sat inches from the screen just to make the comparison. Third Impressions I've also recently found that you can update the firmware from the Philips website.. I did this. I'd be lying if I said I could notice any improvement. But it is reassuring to know that your box is future proofed to some extent. I've also used the unit for playing CD's and MP3's from a memory stick. Sounds greats.. You can also play jpegs from a memory stick. Though with the 32PF9641D TV there's a USB port so you can go direct to the TV. The remote for the HTS6510 is a little bit of a challenge for those with a natural affliction to technology. The control needs to be in the correct mode for many of the controls to work. This will drive your wife bonkers but should be no trouble for you and the kids. Another minor gripe.. None standard cabling on the speakers means I'm fairly stuck with excessive amounts of speaker cable even though I have the sat under the TV. Summary. Positive The HTS6510 has amazing looks if you have gone for a Samsung or Philips shiny black TV then this will fit in prefectly.. It sounds great, really bringing your DVD collection to life. My 12 year old nephew said it sounded ace "just like the cinema!". Also, the HDMI upscaled pictures are excellent quality and are 'almost' HD. Negative If I was being harsh... it lacks somewhat in the connectivity stakes. No optical in means having to buy a convertor. If you want full graphic equaliser you can play with until your blue in the face then this is not for you. Also, a volume on the sub woofer may have helped (still not tried night mode) Conclusion This is a simple plug and play solution for LCD/Plasma TV's with hopeless speakers. If thats what you want, then it is sure to exceed your expectations. If you are looking for an AV amp. Buy an AV amp PS. Did I mention the Philips 32PF9641D is Gooooooooorgeous! ...and now less than a grand... go buy one.. PPS. Sky HD.. When it works its great. Make sure you know you're investing in an unfinished product. Box crashes far too often.