Hello, the STI ETF is definitely a good place to start if this is your first foray into investing. Your strategy of $300 monthly DCA through the DBS InvestSaver might not be the most cost effective in terms of fees but that is subject to personal preference as well.

As the STI ETF only consists shares of 30 companies locally and is heavily weighted towards Financials and Telecoms (not much room for growth), you may want to consider deploying your $300 DCA into global equities instead which can be easily accessed through Roboadvisors like Stashaway, Syfe, etc. at low costs as well.

Hope this helps!

STI is an inferior investment as to capital appreciation.

what else to avoid, here:

https://seedly.sg/questions/what-is-your-general-investing-philosophy-strategy