Complete suite and it works. Good thing about SAP is the product is mature and has the talent to support it. No other vendors, like Oracle, Sage, or Microsoft, have the maturity of the solution or they require too much customization.
Strong financials for project/logistics integration and most of the functionalities, like interco posting and MM-SD consolidation, work out-of-the-box.
Most of the integrations work out-of-the-box. The only thing that you need to spend on ABAP is reports. There is hardly any customization required for SAP, if you implement it correctly.