We used good old SDSL and load balanced ADSL in the past, and when the recession came and our office shrank considerably we switched to domestic ADSL Max line (from Be Broadband, which was very good) to cut costs. We are now growing at a pace again and this domestic solution no longer fits. We have 35 users in our London office, and 5 users in our Northern office connected via a VPN. The VPN has started to slow down, and we are moving more services into the cloud (Office 365, backup into the cloud etc), so there are more pressures on the connection than ever before.
I have had quotes for Bonded ADSL (60 megs down, 6 megs up at very low contention (quoted at 1:2.5)) and EFM (Ethernet First Mile, 8 megs symmetric, guaranteed by an SLA and 1:1 contention). The costs are near enough identical. The Bonded ADSL comes with no SLA, and we are limited by the PSTN lines and any faults that could appear on these. The Bonded ADSL has a much higher download speed to our bigger London office though (60 megs vs 8 megs) and lower initial cap ex. I am leaning towards the bonded ADSL option due to the larger download pipe.
What are your experiences of both of these technologies?