Absolutely. Our eat timothy hay non-stop. The positive of timothy hay over meadow hay is the taste/smell. You'll notice that, when you open a bag of good quality timothy hay, you get a really nice, sweet smell.
Oxbow and Alfalfa King (not alfalfa hay, just the brand name - confusing) are both good in my experience.
AK timothy hay is readily available at £7.99/1.8kg. Oxbow is easier to find online I think than in shops.