This is the cheapest hotels in Turkey and in almost all cases, only an option for travellers who just need a place to sleep. The good new is, of course, that you're in for a very cheap holiday. Hotels in this category cost generally less XXX. Prices can go even down to XXX for a single and XXX for a double.
Still, there are certain services you should expect to find in this category. The first is the most important: The place should be clean. In most cases this also applies, but the most common reason to put a grumpy smiley on a hotel of Budget 1 is when it is dirty. The other things to expect are safety and access to toilets and showers. The latter is usually shared in this price class.
Some places in Turkey in this price range has distinct character, and represent a memorable stay. At these places, Budget 1 hotels are the places where young people have the most fun, often seeing staff taking part in chit chat deep into the evening.
The jump up from Budget 1 to Budget 2 is often not a question of terribly much money, and is often worth it, but not always. Read more about what sets most Budget 2 places apart from the Budget 1 ones.