"I would recommend" = "I recommend." It doesn't hurt to say "would," but you can sound more certain, and use fewer words just by omitting it.
Be on the lookout for conflict of interest (none in this case, but some worried that they couldn't be attorney for both Ms. Martin and Paramount).
Typically this is entered into prior to a definitive agreement. Sometimes the parties want to put the preliminary agreement on paper because the deal seems too iffy, and they want to create some sort of moral/ethical binding, even though it's subject to further, more precise, drafting. Basically, some stuff that the parties agree not to go back on. Also worthwhile if the transaction is complex enough that there will be a long lead time before the definitive agreement, so expectations don't drift.
If some portion of the deal is going to be extremely complex, it's desirable to set it out to ensure that there's really a meeting of the minds. Basically, to get the dealbreakers out of the way up front. It also allows the parties to take a basic agreement back to their various tax lawyers, etc., so that they can consult about the consequences.
This is often the appropriate time to make an announcement of the fact that the transaction is pending. For example, if the seller is a publicly-held company (or the buyer, for that matter, if it's a material acquisition). It can also serve as a pre-merger notification to DOJ or FCC or whoever-- filing the letter of intent can trigger the waiting period, so that's nice.
Consider the difference between a stock purchase agreement (just signing over stock) and an asset purchase agreement (changing title to every asset: patents, factories, etc.).