HSBC's premier investment management service

Expensive compared to other options available. Typically what you expect from bank offers DIMS.

do you have any particular suggestions on the safe investment side

Cant say as we dont know your objectives, requirements, tax position (now and future), investment knowledge and experience or what you mean by "safe" (as in context).

do you think a buy to let house would be wiser in the long run?

Depends on your tax position, objectives, requirements, other assets, your risk profile....... and a large crystal ball.

All we can say based on what you have posted so far is that the DIM services offered by banks is typically expensive and generally quite low quality. They also tend to go overweight in their own brand investments as well which defeats the purpose of using a DIM. You may as well use an IFA in that case and remove a layer of charges that the DIM would have.