Kim
Without a doubt the Weber Q range – (100 & 200 series) are the best portable propane BBQs on the market globally. They are extremely versatile and rugged construction. Don't let cost influence the decision.
The selection of which one is right for you will depend on several factors, but predominately these are the considerations.
Available room to transport, will you also be using the rolling cart.
How many people will you cook for?
What will you be cooking?
Where will you be cooking, do you need side tables.
The side tables on the new Q 120 give it added versatility that it lacked before. It can cook comfortably for 4 - 6 people but with a little planning can do 8-10. You don't need the rolling cart it can be placed on a table and used. it is small and light weight. The aluminium construction dissipates the heat reasonably quickly after use (especially with the lid left open, which means it can be quickly packed away. You can cook small joints of meat indirectly if you use the roasting trivet. The lid height restricts the size of the joints.
The Q 200 features the same but has a larger cooking surface and increased lid height. it is heavier and requires more space for transportation. You can comfortably cook for 6-8 and 10-12 with some planning. The most I have cooked for on the Q 200 is 15 and that consisted of grilled onions, 30 sausages and 20 large steaks which I had to cook from rare to well done.
The 220 has a higher lid than the 200 and has a temp gauge. Whilst most of us use a probe to tell us at what stage the meat is the temp gauge gives an indication of what the cooking temp is. I find that this is important when doing roasts, deserts, breads and the like. The Q 220 requires additional height for transporting, but can still be used on a table without the rolling cart.
A 9 kg (20 lb) tank will lasts approx 36 hours on high for the 200 series and about 38 - 40 hours for the 100 series. (After preheating, I turn my Q 200 down 1 to 2 strokes below high when grilling which reduces the amount of gas used)
I use the Q 200 as my primary gasser and use it 3-4 times per week.
I plan on purchasing a Q 300 at the end of this season and will keep the Q 200 as a portable and a back-up for when I have a lot of guests. GLW (good lady wife) or more commonly known as SWMBO (she who must be obeyed) put her foot down about the time of the purchase and I, like most husbands, decided to agree for the sake of peace within the ranks. (if I don't I don't get any peace and have to use the old marital deafness routine)
Regards