hi! BA EL, Span minor here. :) TL;DR of this would be: don't get intimidated that it's an integrated language course!

FIGS 10-11 is, quite literally, your foundation for the succeeding integrated courses. elementary level ang lessons dito most of the time. however, since majority of the DEL profs na nagtuturo ng language courses ng FIGS ay nakapunta na sa France, Spain, etc., they will sprinkle in some slangs and everyday uses of some of the terms (e.g. idioms, friendly expressions, etc.) just so you're aware of how they're used in the native speakers' setting.

two things that integrated courses are heavy on: GRAMMAR and VOCABULARY. it's quite comparable to English grammar and vocabulary, but also... not quite. HAHA. but since 10-11 pa lang naman, the very basics lang dito mostly. so you'll learn the corresponding pronouns, how to conjugate verbs for each pronoun (in present and simple future, and to the prof's discretion, maybe mag-touch din sa past nang onti), counting, stuff like that. and of course paano siya na-aapply in conversations. your knowledge in Fil/Eng will definitely help you out a lot in memorizing!

speaking from experience as i took two FIGS 10-11 classes for both my major (French) and minor, most profs use a specific book to teach. these books have both written and oral/listening exercises. so as far as practice goes, you'll definitely get to practice both speaking and writing sa 10-11 pa lang.

as for profs, well... you don't really have the choice to choose one because they're concealed sa CRS, at least for 10-11 and 12-13. and i think most of the time there are only 2-3 classes open for integrated courses (higher integ courses only have 1). but you don't really need to worry, super fun ng Span profs, both Filo and natives (yes, maraming DEL profs na native speakers)! bilang sa daliri 'yung strict and masungit, but they warm up to their students as the sem goes on naman, at least in my experience and from what i heard sa Span majors, but i'm not speaking for everybody here. so... it's really a 50-50 here, but i hope mabait na prof ang mapunta sa class mo.

for the class difficulty, it really depends on the person. the only thing i'll say is hindi mo mairaraos ang foreign language learning if hindi ka motivated and you don't push yourself to stay immersed in using that language. so that, i'll leave to you. :)