I am debating between berlitz, inlingua, logo sprachschule, or Sprachwerk. I am hoping someone could tell me their experiences with any.
Which kind of course are you intending to take? Like that I could help out with more specific details.

Logo Sprachschule only offers General English group courses once a week unless you decide to do the intensive course which would be done over a span of 2 weeks. The prices (when I last checked) are better with Logo than Sprachwerk. However, Sprachwerk specialise in one-on-one instruction and use a unique approach based on active speech production followed by a detailed written error analysis which many students find a very good way to learn a language.

Inlingua and Berlitz are well known schools and I'm sure you'll find they won't disappoint. Having said that, I'll always vote for the smaller schools because they typically have smaller classes, and low teacher-student ratios, which translate into more focus on you.
Hi coul'd you help me how to learned in english? I have exam for celpip general test but im not good in engish !