All three prompt bullets are addressed in a consistently friendly register with relevant detail, though the advice and warning points are developed somewhat thinly, with the heating warning being the only caution offered.
7.0The letter progresses logically through greeting, advice, personal experience, and warning, with cohesive devices used naturally, although some transitions like 'But, wherever' feel slightly informal and abrupt.
7.0Vocabulary is flexible and mostly precise for the context, with natural collocations such as 'gain admission', 'post advertisements', and 'pricey', though occasionally wordy phrasing like 'having confidence in my advice in finding accommodation' reduces precision.
7.0A good range of structures is used with generally strong control, including conditionals and relative clauses, with only minor punctuation and comma issues such as 'the flat or home, you decide to rent, has' affecting flow.
7.0