No, it makes no sense, esp. when you take into account the 12/6 months @ half-price.
Essentials plus Anytime Calls Boost 12 x (£3.25 + £4.50 = £7.75) = £93 pa.
Plus 6 x £7.25 + 6 x £14.50 = £130.50 pa.
However the Boosts are out-of-date. It still offers Mega Download Boost (Additional 40GB download allowance) on an Unlimited package.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC