I think so - my dog does really well on it. I got him as a rescue and contacted Burns about a specific issue. They sent me loads of info, some trial packs and money off vouchers; excellent customer service and ive stuck with it ever nice!
I have my two on it now, one is on the weight control and its helped massively for him. The youngster is on the original and its calmed her right down but gives her sustained energy which is great as she is a very active dog. The youngster is also the pickiest lab I have ever known...we have tried about 6 different brands over the years and this is the only one she's eaten without hinderance! It is expensive but it seems to last a long time which always helps.
I used to use Pork and potato as I was trying to elimate grains. He did ok on it but was a bit ribby so changed onto Arden grange. He didn't really put any weight on but the amount of poo he did really decreased and it was a lot firmer! I have since had him on fish4dogs and now fishmongers which works out cheaper, better quality (no grains) no weight issues and not many poos and they are always firm! (Delightful but they say that a sign of a good food is what comes back out! )